No you cannot! I blocked all of the user agents on a community wiki I run, and the traffic came back hours later masquerading as Firefox and Chrome. They just fucking lie to you and continue vacuuming your CPU.
>>mplewi+(OP)
There shouldn't be any noticeable hit on your cpu from bots from a site like that. Are you sure it's not a DDoS?
Obviously it depends on the bot, and you can't block the scammy ones. I was really just referring to the major legitimate companies (which might not include Perplexity).