So I just searched up “15” in the LFG for dungeons and the only things that appeared were “WTS Blah Blah Blah” and when so I started reporting them, I found out that when you report them they only go away if you do a report on them then you click “report group” again. Shouldn’t take that many steps btw blizzard 
TLDR: Report the group, then when done click the “report group” again and it will hide their listing.
I use that LFGSpamFilter addon, there are just too many and nothing is done about them. How blind can Blizzard be? Why would someone ever have a group listed for 13 hours!? If you go offline, your group should no longer be listed.
Idk why blizzard doesn’t just not let you list with “WTS” or .com in the name/description 
It’s so extremely obvious which groups are ads. If an M+ group listing does not specify a specific key number, it’s spam. If a group listing has voice chat that’s a website, it’s spam. If the group has has one member for over an hour, with no M+ or raid progress, it’s spam.
I guess their interns are all busy with dragonflight 
Just refresh the listing after you’ve reported it.
It’s pretty ridiculous that they can’t get someone to log on once in a while and do something about those groups that are listed there for literal days at a time…but at least there are addons/weakauras to filter them out. 
I like you more and more every time I see your posts.
/gnomehug
LFGSpamFilter addon is awesome for getting rid of that crap.
I didn’t even know there were addons for it, should have guessed tho…