The question threads allow you to upvote good answers and downvote bad ones. So "Which knife is best for [x]" or "How do I do [y]" should reward serious answers. Most likely it'll also reward funny ones too but <shrug>
Email servers changed with the server switch, which caused issues with DMARC / DKIM. Couple that with members who have subscribed threads and invalid emails in their profiles and suddenly we're on a ton of spam lists for sending mail to accounts that don't exist
@begreen61 Wrong thread for it dude - moving this to a new thread
There's two ways to get rid of conversations. One, from inside the conversation you go to the top right and click on "Leave"
That will remove that conversation.
If you want to remove multiple conversations at the same time...