Why do people automatically assume that LFS workers give out bad info? From having worked at a pet store as the fish nerd, I have to say 75% of the people who came in to buy fish did not heed any advice I gave in regards to maximum fish size and tank size. I got tons of "the fish will grow to the size of the aquarium" and the "one inch per gallon rule" thrown in my face all the time.
There were the select few that changed their minds, but the vast majority of people who buy fish at a local shop want what they want and don't see fish as animals. Working in a pet shop gave me a healthy disrespect for all humanity sadly.
End rant.