I hope I made my stand clear for joining multi account in the same campaign.
Speaking of joining a signature campaign using multiple accounts. A couple of weeks back I noticed that some of your signature campaign threads had no clause stating that "Joining or enrolling multiple accounts is not allowed" or perhaps I missed seeing it.
Someone can easily take advantage of that, join using multiple accounts, and argue out that they didn't see any rule prohibiting them from enrolling multiple accounts.
Perhaps you could do some update on the campaign thread OPS.