Let me try to address some things first.
I understand where Alex is coming from, and I don't entirely disagree with his sentiment. However, IRC is just another form of communication like skype or msn. Closing it isn't going to suddenly force people onto the forum; they'll just find another way to talk. That being said I personally am not sure that closing the IRC at this point in time will help. Unless I'm not understanding the meaning of the suggestion?
Furthermore, I've been to the IRC and used to frequent it on a daily basis. From personal experience, the people that also frequent it are friendly in general and I've never had any confrontations with any of them that I can recall. Despite that, I did see a group forming in there and didn't feel apart of it. I stopped going to the IRC because of this and for other reasons. I don't hold it against anyone, just view it as different people will be different.
I do think it's unfair to criticize members (individually or as a group) then try to invite them to the IRC. It shouldn't be a surprise why people wouldn't have any interest in going there. Just throwing that out there.
Now everyone wants to quell the "us vs them" feel, but to claim it doesn't exist is pure lunacy. There very clearly are two groups of people that have found themselves standing in a firing range opposite each other. To pretend otherwise and point fingers at one group or another at this point is just foolishness.
Now both of these groups have old members and new members alike. Again, to suggest otherwise is just fallacy. And sure in each group, everyone is friendly and happy and blah blah. But people are just different and they will flock to people that are similar to them. I don't see anything wrong with that. What I feel has happened is that somehow the two groups have become antagonistic toward each other.
I think there's a feeling of the "popular group", but to be honest, I had only made three or four friends when I joined TLS. How? I have no idea. Just by posting and being friendly and sharing interests with them I suppose. When another new member joined, she was incredibly friendly and also shared similar interests. I frequented IRC even though they did not. As more people became regulars in the IRC, I felt uncomfortable and out of place there. As such, I left. Shortly thereafter, I was welcomed by other, older members to join in their activities despite not having any personal interaction with them prior to this. You know how that happened? I asked to be included. I made a post in the xbox thread about joining a gaming session. And I was welcomed with open arms despite them not knowing me aside from whatever I had posted on tls.
So when people talk about a group of old members, it bothers me because we all haven't been friends any longer than the IRC folks. Some members sure, but I certainly am not one of them. And neither is Sami for that matter, who joined the forum a couple months after I did. And before I became friends with them, I was treated the exact same way as everyone else was treated.
The forum has denigrated to the point now where members are packing their bags and leaving. And several others are considering following suit. I'm one of them, tbh. I've felt this way for quite a while. I'm so incredibly distressed right now that I haven't even responded to messages from my friends both today and last night.
As for the "thanks" issue, the thanks system has been here since the board started, since long before I was here. To have it suddenly be a problem is sort of shocking to me. People have always thanked posts they agree with, think are funny, think are rude. People have thanked posts ironically or just because they're bored. There are thousands of reasons and none of them matter. Sure people will tend to thank their friends' posts more. So what? I honestly could care less who thanks what posts, or if mine ever get thanked or not. I'm sure posts that I've found offensive or rude toward me have been thanked, but I never felt any which way about that. To attempt to delegate how or why posts should be thanked is to me a ridiculous concept. Personally I find it much less offensive to have a rude post thanked than to have people make posts like "hahaha that was hilarious" etc. ffs, Tres, Sami, & Tiff thank every other post in existence. Ryu has never thanked one in his life. Yop hardly ever thanks any. I can go on and on. It's so insignificant a thing, it boggles my mind that this has become an issue.