I spend countless hours learning every day on e-daf.com. Someone once had the Chutzpa to tell me that if so, I’m not ever M’kayim Talmud Torah. I said back that even if he’s right, at least I know a bit of Gemara (as opposed to him).
Someone once tried to tell me that Osios Machkimos doesn’t apply when learning electronically, but I’m not sure why that would be true.