No, I program but that doesn't make me a detective - I would need to see logs to analyze behavior/origin/etc... It's very likely I've been hoodwinked and interacted with said bot - my threshold for "human-detection" is pretty poor. However, the discussion of this has made me slightly suspicious of a few accounts but provided they provide good discussion, maybe it's fine. <--- well, look, I know it's not fine. I just mean... there's nothing I can do except try to look for commies around every corner, and if the mod's aren't concerned about a bot posting here, then so be it.
I would also consider if it was someone who is using a translation service (ie, non-native english speaker), or a free VPN product and they just look suspicious. I don't know what VPN connections look like, I'd assume they'd be IP's belonging to... a VPN company which would make them less suspicious looking.