-Buff increases are completely client side +also very hard to find.
-Buff pausing can be done but is very quickly detected by warden so i do not encourage it
-Money hacks are ofcourse client side same with Player Stat and Iten hacks
-Not saying at all you cant do anything with these there are infact working Mountain Climb/Float/Tele to plane tricks which can be done with Mem Editing programs and isnt really that high of a risk if you do this the right way still to say i wouldnt try this on my main incase of it getting banned.
-Speedhacks work and can be undected if done right (not MemEdit but a CheatEngine tool btw

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I have to say i myself in recent time have seen people in WoW get away with pausing the palidons bubble buff in PvP BG's which is pretty wicked but im sure he was banned soon enough
