Neopets, yay or nay?

Awhile ago [ while I was younger] I went on Neopets. I loved it it was a cute site to take care of imaginary pets, and were able to make "money", buy things, and play games. Unfortunately, awhile after I started playing (6 months or so) our computer had gotten a virus. My father was completely sure that it was that website that had caused it, however you don't download a thing, and I had used it for a while without any problems. Also, it has skyrocketed as a great website for kids, and I'm sure that if it caused viruses, it wouldn't be so popular. Anybody care to share any experences with it? I'm home sick, and have a urge to play it. Thanks in advance!