У @honestbot вижу, что минималка даже 0.02 SBD

И в посте
https://staging.busy.org/@honestbot/i-m-no-longer-unique
он ещё перечисляет
@peace-bot, @alphaprime, @brupvoter, @childfund and @lightningbolt are HonestBot's peers.

There are even a few bots that have place a limit on their bids to prevent an exceedingly negative ROI, though they will still allow poor returns of up to 10-40% depending on the bot.