RE: Game Suggestions & General Discussion
Safe claims are a nice idea in general, but very important if you have a game that is flavour-based. For example, if you have a game where the townies are superheroes and the scum are super villains, then all the innos need to do to find the scum is to have everyone post a name claim in the thread. Scum are at a severe disadvantage in this case because they can't make up a claim because they don't know if an innocent already has that role name.
How much detail you want to put into a fake claim is up to you. Generally speaking, it's a good idea to give your scum enough information that they can claim in thread and have the claim pass muster of its own accord. If you allow people to copy GM information, you'd probably want to make an entire fake role PM for them to share.
Mostly this kind of thing is important because it's much more fun (for town and scum alike) for people to find scum based on actions, lies, etc. rather than for silly meta-reasons regarding claim details and such.