There is an IRC-Channel called #hitchhiking on Freenode.
Be welcome to join our discussions. Many people come here usually to ask for hitchhiking tips and only stay for several minutes. Mostly nobody manages to answer in time. Please be patient and specific, show that you checked the wiki already. So instead of just asking "Do you have any hints on to get from A to B" tell about optional routes you consider or which info you found on pages about cities involved. Then everyone can learn a bit :)
Since late July 2018 freenode suffered spam attacks, so we had to limit the channel to identified users (+r). In case you see
#hitchhiking Cannot join channel (+r) - you need to be identified with services
/msg nickserv help identify
and follow the instructions in the query window. Sorry for the inconvenience!
For Finnish speakers; channel #liftari on IRC-net.