I've done it loads of times with scrapebox. Yes some you can't register, but just keep entering usernames from your list and a lot will register, I've found about 50% over PA30.
Can you still re-register expired weebly domain? I think that you must pay to get indexed domain.
Because I think that it is too expensive to pay for indexed domain on weebly. It is just my opinion, I think that this web 2.0 just not worth it.What does paying for indexation have anything to do with registering it? Its up to you to pay only after you have access to the domain.