[asdff]

In tournament play you are allowed to bunnyhop without scripts. It's harder and less usefull in csgo but still done. Most servers aren't gonna ban you for bunnyhopping unless you are doing nothing but bunnyhopping around the map the entire game. You won't get a vac ban.

[throwaway3699]

Bunneyhopping is nerfed. You cannot do it for more than a few seconds without scripting.

[kuroguro]

You can do it for quite a while with mousewheel = jump (which isn't considered scripting). Doing it effectively / keeping the speed does require practice. Was way easier in 1.6 and source tho.