Now I think most guilds are deserted.
There are so many places with a lot of coals to mine, so there is nothing significant about the miners' guild when it comes to coal. At the top of that coal respawns quickly so even places with few coals are good places.
It's more worth it to use the ranged skill to train on powerful monster than any of the training spots in the Ranged Guild as you get more for that.
And I have never used the Crafting Guild, not once. Well, alright I did use it before I became a member, but I was only a f2p user for less than a year.
I could go on and on.
My point is I doubt many people use the guilds. I might be wrong, are guilds being used a lot?
The only two I can think of which are being used frequently are the warriors' guild (though I don't use it myself I know many use it.) and the fishing guild. The rest of them seem to be deserted as heck, and for good reasons too since there are much better training spots than these guilds for the most part.