My first post to the rec.arts.disney (before the vote to split the group into the sub-groups) was in 1993. Back then, I was a little overwhelmed by the volume of posts, but I've learned that with usenet you skim, scan, and filter, and it isn't much of a big deal.
If I feel like looking at some disney information and have a little time, I might scan radp, I might look on this board, I might look at another web page, depending how the mood strikes.
I'm probably more of a lurker or occasional visitor to all the sites.
I think that radp can be one of the best sources of information out there - things like cross postings and spam don't really bother me because I can scan it out pretty quickly. I also like that there isn't a commercial tie-in or sponser or moderator, so the discussion is open - the flip-side of course, is that it isn't always on-topic. I just ignore what I don't want to. I really like this board, but I prefer radp to many of the other boards because it seems a little less silly and newbie a lot of the time, if you know what I mean - this particular board also is on a higher level most of the time so it is probably my most regular stop. There is a lot of junk out there that I'm not interested in and don't have the time for on both radp and the boards, but for a catch up on general things radp is easier for a fast skim than going through the layers web page bulletin board. I can scan through a few days worth of threads on the bulletin boards in a few minutes, and I have enough of a familiarity with the usual suspects to know if I want to pay any attention.
If I'm interested in a specific piece of information or about comments on a given topic I may look at several places though or in a more direct search.
DR