1) Does Hosthorde have a minecraft wrapper like mark2 that can be used to connect the chat of more than one server? Here is a convo I had I reddit with some folks http://gyazo.com/d21e33fdfa9841fde3a7968acd97d543 and they recommended this but I see mark2 is not supported anymore http://gyazo.com/34a2202b0876fed8379e8b049965d7c3 and I'm not sure what the best way to go to integrate the chat of two Hosthorde servers. One is 1.7.10 and the other is 1.8. Any ideas? 2) How do you change your username on the forums, or is it not possible? Thanks!
Yay for /r/admincraft! :p 1) HostHorde uses Multicraft for the wrapper, as far as I know, you won't be able to use IRC with vanilla + Multicraft. You can use mark2, but that requires SSH access which game server providers do not give access to (unless you purchase a VPS/dedicated server). If you're running a vanilla server, you probably won't be able to link the chat. 2) No, don't think so.
As far as I know, most likely not. To use IRC with Vanilla, you'd need to run third party programs requiring SSH access for scripts/wrappers. Without SSH there isn't really much you can do.