Well this is getting a touch of unseriousness.

May last words on this:

The newer name-form is Svarttjärnen. On older maps it is Svarttjärn and probably in local folks memory as well. You could of course make yourself a laughing stock considering "Svarttjärn" the "correct" name.

https://kso.etjanster.lantmateriet.se/?e=324907&n=6400050&z=12

https://sv.wikipedia.org/wiki/Svarttj%C3%A4rnen_(G%C3%B6teborg%2C_V%C3%A4sterg%C3%B6tland)

https://www.lansstyrelsen.se/download/18.2e0f9f621636c84402719336/1527745491763/G%C3%B6teborg.pdf

Mind you; there is an other lake in Göteborg, tagged in 2008 as "Svarttjärn" but on lantmäteriets maps named "Svarttjärnen". way/23195032. There has obviously been a shift in naming-procedure.

But some friends of mine, living in this area, are insisting that the truely, correct name is "Svarttjärnet". Should we consider "Svarttjärnet" the "correct" name now?

It dosn't work this way. I advise you to read about the principales of osm here osm.wiki/Sv:Beginners%27_guide

You changed the geometry of yours from yesterday. But have a closer look at the stream way/74010827. Continues through a building and deviates in the woodland area from lantmäteriet quite a bit, don't you think so?

Why is this tree linked to path way/801386707?
All this is hardly in accordance with satellite image or lantmäteriets map.

Are you now in for a tit for tat? See even comments for cs #84772679.

Re DWG: please see osm.wiki/Data_working_group

Re sloppy: Yes of course you are quite right. When you changed the names of the lakes in cs #84772531 and later in cs #84772679 after I had raised objections about this in cs #84767999 this was not sloppieness but faul intent.

In this one (1) day you have been active as a user you have ventured around the world quite a bit https://resultmaps.neis-one.org/osm-suspicious?uid=11135477#2/-17.1/112.3

So the edits you did in this cs (changeset/84778570), I would call sloppy (way/800818756) and (way/800818754). When you venture that far after just having started editing, you should have acquired sufficient basic knowledge not to make this kind of error (place=islet).

I did switch to English, because I suspect that your rather sloppy cs would be of intrest for the DWG.
The only names, which come from a - as far as I know - non-copyright source are from lantmäteriets maps.
If you know of any established (that is really established, not only known by you and your friends) local name, please put them in loc_name=*.
If you know of any official name, which differs from lantmäteriets maps and is newer and is from non-copyright protected source than lantmäteriets maps, well use them and state those sources.
But as long as you do not present any new source, which is non-copyright potected, you are kindly asked to let lantmäteriets names untouched.

You could use old_name=*

I have reverted your changesets #84772531 and #84772679.

cs #84772531 has been commented before in cs #84767999.

In the reverted cs you deviate from what the swedish agency for geodata - Lantmäteriverket - states regarding the names of lakes.
On Lantmäteriverkets maps - copyrightprotected as well as non-copyrightprotected - calles these lakes Svarttjärnen, Prästtjärnen, Furåstjärnen, Blacktjärnen, Björnåstjärnen, Bergåstjärnen and Hindtjärnen.

You have - without having given any credible source - changed to Svarttjärn, Prästtjärn, Furåstjärn, Blacktjärn, Björnåstjärn, Bergåstjärn and Hindtjärn. You have stated that it dosn't "feel good" with Svarttjärnen etc. [in comment to cs #84767999]

You may have noticed, that even the other lakes around has names with endings -en or -et.

Please do keep these names in accordance with the official names. If you are certain that there are other local names for these lakes use alt_name=* or loc_name= respectively.

I have reverted your changesets #84772531 and #84772679.

cs #84772531 has been commented before in cs #84767999.

In the reverted cs you deviate from what the swedish agency for geodata - Lantmäteriverket - states regarding the names of lakes.
On Lantmäteriverkets maps - copyrightprotected as well as non-copyrightprotected - calles these lakes Svarttjärnen, Prästtjärnen, Furåstjärnen, Blacktjärnen, Björnåstjärnen, Bergåstjärnen and Hindtjärnen.

You have - without having given any credible source - changed to Svarttjärn, Prästtjärn, Furåstjärn, Blacktjärn, Björnåstjärn, Bergåstjärn and Hindtjärn. You have stated that it dosn't "feel good" with Svarttjärnen etc. [in comment to cs #84767999]

You may have noticed, that even the other lakes around has names with endings -en or -et.

Please do keep these names in accordance with the official names. If you are certain that there are other local names for these lakes use alt_name=* or loc_name= respectively.

jag såg att du rättade. bra

Du skulle ju kunna tillfoga alt_name=Svarttjärn

Även denna sjö har bestämd form på lantmäteriets kartor. way/10305111

Är du helt säker på att det är en kulvert här? På satellitfotot ser det väldigt likt ut som en bro.

När man använder denna väg way/800707170; kan man komma till Sättingsvägen?

Enligt lantmäteriets kartor har denna sjö namnet "Svarttjärnen"; dvs bestämd form. Varför tycker du att det skall göras avsteg från lantmäteriets uppgifter härvidlag?

Ok, thanks for clarification. Thanks also for the mail :-)

Thank you. Most intressting. This leads to two questions:

1.) why isn't this pointed out more clearly in osm.wiki/Addresses "Buildings with multiple house numbers"?

2.) why is there a separat delimiter for address? Are there any other instances where semicolon is not the valid delimiter?

Snyggt! Är det spelplanen som heter Vinåvallen eller hela idrottsanläggningen?

This (way/799313511/history) isn't really a path all the way is it?