I find it to be both. Lots of support from 'friends' and lots of discussion too. I think there is even more to it than that but that wasn't part of the question, huh?
So, you would like it to be more discussion/less support? While it seems to go in waves, some days there seems to more going on in our lives as a group that we need support than other days. I think it is great to come here and ask for it because there is always a 'friend' here who will support you.
Lately, it is also a place to learn patience with all the strange charatcers >1 and code that we see and the multiple it times it takes to refresh pages.
I agree that the boards are both also but I think the ratio of discussion threads to support threads varies according to what is going on in the world at that time. Usually it's more discussion but in times of crisis it seems to become more support. Whatever it is it seems to work for a lot of people.