I would like it as I use a feed aggregator (blogbridge) and it really speeds things up.
Is the con avoidance of the main page press releases and risk of losing advertising revenue? If so there is probably a way to inject ads into the forum RSS feeds. That would be totally fair from my point of view.
That's definitely one of the possible cons, but there are a few other reasons. I really want to community to stay 'tight' like it is now. I have seen it happen where RSS feeds kind of ruin this. I also have to check some performance stats, to make sure it won't put a bigger load on the server.