Idea received ! And here is the proposal in the loom.io group : http://www.loomio.org/discussions/1334
I think you guys have missed completely missed the point, never mind…
@Robin : the point is : newcomer in Loomio should know what everyone is doing. But everyone is doing so many things, that add it after our name takes a lot of space. If everybody does that, i doubt things will be clear.
Maybe really implicate people should do, like Sean should add “Community Manager” to his name. But “User” ? Of course, if we are here, we use Diaspora.
So a link from our name to our Diaspora profile seems a good idea : if you read my bio, you will know everything about me 
@Flaburgan, good point about putting “User” its a bit of a no brainer, I guess I meant it as opposed to a developer.