Preach - linking to their threads? Not a good idea IMO. The first principle of site competition is that you don't give people a reason to visit another site that is about the same thing. Surely that's obvious? People can go on about how they want sites to be able to work together for the greater good, and it's a nice theory in principle, but this ain't communism and to be realistic that shit ain't ever gonna happen.
I think you are trying to play the role of mediator and here, but really what that boils down to is that you are sitting on the fence. In the real-world, there is no sitting on the fence. You make your decision, one way or the other.
The number 1 thing I hate about smoking weed (even though I enjoy it a lot), and the whole reason I've drastically cut down on doing it is because it gives you THAT EXACT attitude. That weed-clouded far too laid-back attitude of "It's all good, everything will work out just fine, let's sit back and watch the world go by, let's all get along, not make any decisions unless I have to". It is a lazy and lethargic attitude, and as much as I love buddah, that's the worst thing about it, not the health problems and bullshit reasons the media shouts about and in 10 years time you will look back and think "What the fuck did I do with the last 10 years of my life?".
I'm not saying that's you, but I am seeing that attitude come through in your suggestions for how this board should progress. There is no working with a rival and you should never have even mentioned that, that should be a given. You don't think it's wise for here to sport an anti mrmak attitude - yet they sport an anti-streethop attitude (at least some of them, pretty obviously since some of them are banned members of here). Trying to be righteous and have the "2 wrongs doesn't make a right" stance is not going to work in this instance. Of course I am not advocating unjustified hatred towards them, but if people want to express a criticism, let them go ahead, however they want to. If that makes it seem like there is bad attitude towards another site, so be it.