Ooh Wisteria! One of my favorites. I bought one of those Petco tube plants (I've bought many of them, actually - haven't lost one yet, and never found a snail on them) that was labelled Java Fern - turned out to be wisteria. They were just 4 little stems when I bought them and threw them in the 10 gallon to float...
They have since gone completely insane. They grew so much that they essentially cover the whole surface of the water now, and that's after I took one stem out and put it in another tank. They're very pretty plants, and when left floating, they put out all these roots that look like streamers, which hang down. My guys love them. They are perfect for holding bubble nests together and for hiding in.
What's strange is that they grow like weeds in my unfiltered, zero-current betta tanks, and melted away in my filtered 20 gallon which has some decent water movement.
The only cure for ignorance is education, and bullying or attacking someone is no way to educate them.