Expanding on 51:
Normally, it would be a towny thing to do: You limit scum’s fake claims, while being willing to put a tiny bit of your own claim first, showing that you don’t care if your claim is limited.
But if you’re confident you can find a fake claim easily, despite limiting yourself, it looks good for towncred. Additionally, you do get a tiny bit of extra scouting on townies. Admittedly, it’s very slight, but helped me a tiny bit in CoD mafia.
All in all, slight info and town cred, but only if you’re confident you just find a good fake claim. The incentives to do it as scum usually don’t line up, and that doesn’t even make it inherently scummy either. So it’s usually worth townreading just a tiny bit.