How good is Michal Ryszard Wojcik?

His English is extremely simple, just like in a beginner's textbook. He writes only short sentences, uses limited vocabulary and simple sentence structures. I do not claim that Mr Wojcik is not good at English; I just wonder why he hasn't shown his abilities like Mr Szynalski has (by, for example, writing messages to this forum in complex and native-like English). OK, he has very nice pronunciation samples, but they are very short and aren't naturally spoken (I mean the spoken lines have been practiced).

Sure he's better than I, but I don't claim to be a master in this language.

Bear in mind that most Antimoon articles are written in simple language so that they can be understood by intermediate learners. Trust me, MRW can write very complex English. As an example, check out his recent PhD dissertation in mathematics (PDF file):
http://www.apronus.com/mrw/MRWojcikPhD.pdf

About the pronunciation samples, he was reading, not speaking naturally. There was no rehearsal.

He provided alot of usefull posts in the early days of antimoon, but not too much has been heard from him recently. Perhaps Tom knows more.