The button doesn’t send Blizzard anything, it gives you a link to this page:
https://battle.net/support/help/product/wow/197/1501/solution
The majority of GMs seem to have 0 motivation to deal with explicit content in addons and will tell you to simply uninstall the addon. You’ll need to either really drive it home (usually over a series of back and forths) or ideally refer to GMs stating that even addon text can be reported; I’ve bookmarked this link for that purpose:
It embeds Krar’s comment, but at the link you can see the “thread closed” message which reads:
Closing this here because it’s descending into insults and inappropriate posts.
As always, if you see inappropriate behaviour ingame, report it ingame. This includes inappropriate profiles on RP addons.
The forums are not the place to report inappropriate behaviour ingame.
Thanks
Code of Conduct: https://eu.battle.net/support/en/article/000256989