I've read that article on PETA's site before PFK pointed it out, and I laughed it off. As a breeder and keeper of bettas I think I know a bit more then them... In fact, most people on this site do. Like he said on PFK, there are problems in the industry, but the ones PETA outlined are pretty irrelevant. If PETA has to go after people in betta keeping I think they should go for breeders who clip fins and cull crazy amounts or who breed fish like the one in the picture below before they attack people over shipping them in boxes.
This was my favorite part-
" If I tried to transport a puppy in a bag of water, it’d likely drown. And if I put a Betta into a dog carrier, flapping about on the base, it wouldn’t do so well."
Ricky's link worked for me, by the way