Re: suspending their account and them just remaking- yes, what you speculated does indeed happen. People/companies have been caught doing that and basically they either vanish or have to be hunted down and hounded for refunds. It's behavior like this which makes indie kickstarters fail more often nowadays.
Backers don't really have a safety net, so they're super careful which projects they fund now. Agashi's seemed so promising because she was so into it and active, even the more cautious types probably gave it a try...I hope she understands that her actions have harmed not only the trust her backers have in her, but the trust all kickstarter backers have to any future projects.
As to Kickstarter contacting the creator...not really. Not beyond what info the creator themselves gave, and perhaps a bank account (that could be defunct by the time people ask for refunds).