Vispilio does have good English but Bounty Detective doesn't really have enough written material to make an apt comparison between the two. I'd say Bounty Detective using Vispilio's telegram and profile ID is weird enough by itself.
I'm not sure about that, the OP uses a lot of words in good English, better than Vispilio, not all of them I've read either. Also bare in mind that it's quite likely there are more than one person involved in this, the OP could have been written by some "marketing" type, while someone else can be more in charge of the bounty side of things, replies etc? Anyway.
English is your first language, right? Vispilio has a bigger vocabulary than many native English speakers -- not sure how much attention you've been paying to his posts.
What about the fact that BountyDetective copy/pasted a post with Vispilio's social media information, and then instead of just correcting it to their own they deleted it? Doesn't register?
In any case, I don't really care as most bounties are for either scams or shit projects, but it seems like they are 100% the same people.