It is pretty hard to get out of low ranks if you don;t play whit a team. (and no, ia m not low rank, 3100 ELO on faceit if you care, but i think you don't). Stop flameing players that are not that high in rank. And yes, rank dose not means shit.
I don't know, now people are getting bored and start trolling, cheating, flameing etc. There are a lot of player that says "If don't drop me i just go AFK" and shits like this and basicly your team do not kick them.
I don't really have an specific rank but I can match up against lv 7 8 without too much of the trouble(well the most recent "highest" I played since im pretty much smurfing all around the game)