I agree with CABLE MONKEY, but people can and do fall into both camps, as I do.
I've not only enjoyed being part of the FORUMS (NOT 'fora') and especially P.F.M., I've gained advice, tips, suggestions and recommendations which have helped me change my entire soundstage these past few years.
One can give advice on received wisdom (as many do) or actual experience. Neither of these can guarantee to be pertinent, as all installations are unique, I'd say. But every little bit helps......
I'd also agree with his post in that it's the community (on pfm) that is all important.
The audio room on most forums can be effectively written off in terms of providing any genuinely useful service to those with a system problem. Hand on heart, when I log into pfm, AoS or WW I do so thinking 'wonder what they are all on about today'
Interesting banter - that's how to view these things IMO and there is nothing wrong with that.
The real worth comes from the peripheral areas (in terms of numbers) and you can get genuinely useful help and advice (and give it) in the vintage and diy sections. One post from people such as Martin Clark or PD in the diy room is usually of more real worth than the entire day's audio room posts, in terms of offering genuinely useful help.
This forum is a little different in that it also has a great photography section.
Personally, I rarely go into 'off topic' since I get quite enough of that at work, thank you!
Specifically regarding the advice given in the audio room, I sometimes feel a forum is counter productive in that it can instil more doubts and confusion than it offers useful assistance.
Asking for advice and receiving twenty different recommendations is of limited worth!
In this area, audio forums are quite different to other hobbyist sites where advice tends to more directed, relevant and coming from a position of common agreement.
Ask for recommendations regarding say, film grain on a photography forum and the advice given we be pretty useful. Ask about taming a bright sound on a hi-fi forum and you'll likely be told to clean you pugs or shove spikes under the shelf +20 variations....
Nuff said.