I've spent a lot of time on here recently, but I can't figure out what James' whole issue with this place is?

He seems to be very well versed in buddhism so I assume his problem isn't with that? Is it with people claiming attainments? Or does he think meditation is harmful? or something else?

James is/was a troll, a troll who admittedly knew his stuff when it comes to Buddhism and the suttas, but he was given plenty of chances to make a positive contribution before being banned. He seemed to think he'd created a schism when, in actuality, he was just being an annoying little boy trying to get attention.