Because it actually sucks and worst thing ever to be created. Awful hitreg, 600 avg fps on badlion, 800 avg fps lunar and salywrr gives me max 300. Cringe useless mods, low quality design and IT LITERALLY COMES AS A .jar FILE. There was literally no sprint reset on older versions. Use forge, cracked lunar etc. but do not use this cancer client. Do not use your premium account on it. About servers, it has a weird alt loader thing, and just like I said unfair advantages on older versions and guess what, you can download these version on internet and use it. Its nothing different than using a cheat- both gives you unfair advantages.