So about jump.

[Arcell]

I really can't believe people are making such a big deal if you can jump or not. I'm sorry, but can't you just be happy instead of finding something else to complain about?

Seriously. You can freely jump like this in GW2 and objects react similarly. How often do I see people doing stupid stuff like that? Hardly ever. The novelty wears off very quickly and instances of people amassing in certain areas and doing "unrealistic" stuff is rare at best.