BooleanComangliawell a decent buff would just have higher tick servers. Bhopping in CSGO is way easier and more beneficial at 128 tick lol.
Bhopping really shouldn't be that important in tf2 though, bhopping can get pretty crazy and start to really remove the point of having slow and fast classes. At most I can see is giving a single specific class bhops, such as medic or spy even still have it be really hard to do and not make it so a medic flies across the map.
Perhaps I should clarify in the OP that I'm trying to imagine the effects of a buff to roughly +50% extra speed in TAS. Realistically this would allow humans to gain +40% of their class' current max movespeed. Slow classes while bhopping would be like a light class, light classes bhopping would be like a scout, etc.
Slow classes would still be notably slower than fast classes while bhopping, and while DMing someone with a hitscan weapon, trying to start a bhop is basically suicide.
I can definitely see why being able to triple your horizontal speed after 7 jumps would be stupid to play against. When I say "buff" I don't mean "TF2 gets quake movement physics"
Now while I personally like having skill based movement, +40% would definitely be way to much, Heavy would be close to scout speed at that point. Maybe a +10% would be ok at most, but even then I think it really should be tied to only specific classes and or items that have a major trade off. Example 1. Buff to Overdose that allows medics to bhop for an additional 10% movement speed. Example 2. Spies can bhop for an additional 10% movement speed while cloaked (cloak and dagger would need a bit of rework otherwise it would drain to fast).
Otherwise bhops would become way to important in general gameplay and honestly I don't think the majority of players would like it, and it would really upset a lot of class balances. Not to mention bhop on scout would be nigh impossible due to the double jump.
Also when I say +10% I am referring to the speed charts on the tf2 wiki here
so for example 2 a cloaked spy would move at 117% speed vs current 107% speed, but only while cloaked and doing bhops.