I would suggest everyone is cooling down. There is nothing like "vdr-portal project going on behind your back", and pipelka is not a regular at vdr-portal either (AFAIK). I could imagine several things about xvdr, which all do not deserve being upset about.
Maybe he just wanted to try a new code-path, to try some new ideas, maybe there has been some discussions/situations, which made him upset and he did this as reaction. All this is no reason to escalate the topic like its done now.
I would suggest to lay back and wait to see what is happening.
If xvdr gets better, than what vnsi is doing, it should be talked about how to get it back in mainline - not how to get it away.
All that said - i dont know what happened behind the scenes - but thats only interesting if both sides doing their comments.
To repeat it - i'm a vdr-portal regular and i'm not aware of any hidden forces against dushmaniac or xbmc pvr integration - a fork of code on github i understand as a normal thing and some more clarification might happen at a later stage. I could understand dushmaniacs reaction if there would have been some announcement from pipelka and he would be working against him - as this is not the case and he was surprised by how fast it was discovered - i dont assume bad intentions at all.
THANKS!