I have seen a lot more cracks going on lately. A few RL neofriends have had problems with items dissappearing, and I doubt it's that common of a glitch.
Unfortunately, one of the downsides of captchas getting scrapped is that people are going to be able to seriously speed up account-grabbing. Change any passwords you have and you should be good. I doubt anyone is out there bruteforcing Neopets accounts, and if they are they'd be going for admin accounts anyway.
Chances are they're using old leaks and either doing it manually or using programs to check and secure accounts, so changing a password should keep most people out.
It's just lame that people are going after active accounts.