It doesn't matter if they can or not - they damn straight can't get $5,000 per day for copyright violations...lol. That being bogus tells you the rest just might be BS, too.
It can be a good chunk, if you get sued, though. I wouldn't rely on being in Thailand to help because over 160 countries have reciprocal copyright laws with the US (if it's a US site you scraped).
The sucky part of it is if they can sue, you'll be out tons to pay a lawyer and you will lose. It won't be for what they're claiming but it could cost you a hella lot more than it would be to just pay someone to write a site for you.