Bots that appear in private messaging

A capcha upon logging in for guests would fix a lot of bot issues. So it just makes me wonder if they really want to fix it?
There are actually bots now that can get past a captcha with a surprisingly high success rate
 
beep/boop
tenor.gif
 
The only positive thing about the bots is that whenever they get muted kicked or banned. They never come to the forums and complain about it.
 
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