Would it be a cost issue (preventing the audio posting idea)? Like you say, mobile browsing is becoming prevalent - making it easier for forum users to participate while on the move will keep TFC at the vanguard.This isn't the worst idea and you're probably onto something in regards to the future of forums given how popular mobile browsing is. I doubt it's anything that's going to happen any time soon though. Having a server full of you lot chatting shit in text form is bad enough.
I think the person you're referring to, who offered someone out, is now in the sin bin. So I guess, in that regard, it has worked.
A self moderated forum is a vague reflection of the people using it. So if you like it here, you might have to put up with a bit of colourful language. Vote when you see any arguing in threads etc though, if it's ruining the site for you. If enough others agree, the perpetrator will feel the back of my (virtual) hand.
Have you considered charging a subscription to users after a given number of threads have been read or posts written? So, you have ten free posts per month, then, if you want to continue participation, it'll be £3 a month, for example. A subscription like that is negligible to the user, but, I'd imagine, significant to the forum.
Regarding Pirate 's complaints, I'm in favour of our self-governing soviet.