Bots already are banned though. This would act as an early warning for the bot owner there not can be detected and to change the rest asap.
Same issue as banning a single bot as soon as detected.
Except if the payout is worthwhile or it is fun, players will find more bots than they ever could, so “paying” the finder by giving them the bot is a smart move on their part.
In UO after I killed the bots the GMs would move the ghost off the ship so I could steal the ship
I doubt CCP is going to make a call about someone being a bot nearly instantaneously as you hope, at least i would hope they would spend more investigation time than your suggestion implies before banning my account for instance just because you think im a bot.
Since i believe bot determination by CCP is going to take far longer than your idea implies the person most likely to find out that a certain account is considered a bot by CCP and is fair game for killing would be the botter themselves, which opens up an opportunity to exploit this idea by blowing themselves up or having a set person do it and then looting and salvaging their own bot.