Only little girls who can't pvp like half health.
Here are some funny common traits about them all:
OP half health
They all run if its a 1v1 no matter what player it is
When they run away they place about 50 billion blocks
They only play in parties of at least 5
They cross team if their party is too big for a team (but hit each other once during the cross team so the 200 IQ genius cubecraft staff are fooled by this piece of deceptiveness)
Punch bowspammers
They only fight if its a 5v1 and/or they outgear the opponent
They chug gapples like there's no tomorrow.
Anyway, about your point, its not really an "abuse" of donator ranks because they paid for it so they can vote it, but half health really should be removed. It won't be though because lubecraft isnt a competitive server its a server for little kids, staffed by little kids, with gamemodes (i.e half health...) tailored for little kids. This way the server can exploit the kids so they can make a lot of money. I applaud the owners' business acumen.