There are already 4 pages of applications for signature campaign there, so there's obviously interest despite the lower rate. Keep also in mind that on altcointalk there is a "teleport" option so when you create a new account, you can simply sort of transfer your bitcointalk rank so you don't have to start from scratch.
I'm not sure, but I think that I had a profile on that forum a long time ago, as well as on some other forums - but what I'm interested in is the
"teleport" option, that is, how exactly does their admin verify that someone is really the one whose profile want to transfer - anyone can say they are Lucius and give my unique profile number?
This is simple, if you read the teleporting rules on altcoinstalk, you will see where it is stated that before you are teleported, you have to copy your altcoinstalk profile link and come to your profile here on bitcointalk, then paste your altcoinstalk profile like you copied in either your signature ad space, or your website url box in your bitcointalk profile, and then, you share your bitcointalk profile link with the altcoinstalk admin, who will scan it and verify that the profile is really yours through the altcoinstalk link you posted on your profile.
This is how I believe, the admin there gets to verify that the bitcointalk profile that are being teleported, actually belongs to the altcoinstalk user who claim to own it.