I've had this name online for 17 years, and if you know my real name, you know where this one comes from.
TBH if someone at an Audax start (I'd never see them at the finish) said "Hi, I'm Benjamin Toblerone-Smithtinkle" I'd have more difficulty connecting them with posts on here than if they said "Hi, I'm Ben T".
I'd stick to Ben T, Ben T.
don't even need the "T", I normally just introduce myself as "Ben".
thing is though I don't get the need to "connect them with posts".
If someone (notp) introduced themselves to you at a bike ride as who they post as on bikeradar, say, or singletrackworld, you'd possibly be a little bit confused.
Worse still on audaxes, it kind of propogates the myth that this forum is the 'official' or 'only' forum of audaxes.
If you use several forums, and you use a different user name on each, which one's username do you introduce yourself as?
I use my own name on the forum, but if I didn't, I wouldn't introduce myself as my username because it's not up to me to presume that people want to remain in the context of the forum when they're not sat at their computer, or even that they do use the forum. That may be (probably is) a slightly cantankerous viewpoint, but still.
edit: I think I hold that view probably because personally I largely reject the role of the internet as a social interaction vehicle - I refuse to use facebook, twitter, etc. The forum is, for me, a
tool - for research, and finding out about bikes, bike riding and bike events, rather than a mechanism with which to socialize with people.
I'd rather people know me more from meeting me in person than from interaction on the forum, than the other way round.