Would the merit system make it easier for campaign managers and mods to spot people who are multi-accounting and abusing signature and ICO campaigns?
Maybe, maybe not.
I think that it won't take long before we'll see people giving out merit point to their own various Bitcointalk accounts, thus leaving a digital trail that ties the accounts together.
Where exactly would they get their initial merit from? You do not get sMerit unless you are a source (past the initial phase) or someone gives you merit. Who would give random merit points for useless posts?
Stop opening so many threads. Close this one and keep your discussion within existing ones.