What's wrong, xhash.net seems to find no blocks. Hashrate is also not shown. 
Check with xhash support please.
What´s up with irc channel ? I can´t see any conversation (even my own words are "invisible" ) ?
no idea, in slack all the time, you (anybody) should join it, it's like an all day long giant brainstorming session
pm or email me or medic or estenuno to get an invite.
from now on we'll be pushing out a small selection of our ideas out through @RobotMarkus on twitter, worth following.