Scan Slop is a free tool that automatically blocks spam and AI bot content. You can ask your moderators to install it.
New users are asked to prove they're human before posting or commenting. The bot removes their content and leaves a sticky comment with a captcha link.
If a user keeps promoting the same domain, the bot warns them first, then removes their content and bans if they continue.
Message the moderators of your favorite subreddit and tell them about Scan Slop. Takes 2 minutes to install and it works automatically.