Ranked is a business for Riot

You ever wonder why its so hard to rank up your old accounts? They want you to make new ones. New accounts is good for business and its a "growth" they can show their investors and shareholders. This is why their matchmaking system is so shit. Its because they have to accommodate smurfs.

Make no mistake, mmr is totally their way of trying to make smurfing fair to the ranked community, no matter how fucked it really is. They don't really care that their system shits on older accounts since they want you to make new ones anyway. They don't really care that new players are joining ranked so fast, it promotes new accounts. You think lots of players would take the time to make a whole new account if it meant meeting even more extensive prerequisites to enter ranked? Probably not half as many as there are now, that's for sure. Riot cant jeopardize that.

New accounts and smurfs fuck matchmaking in ways the general player base cant even recognize.

For all you knew players who jumped into ranked right after hitting 30... if you're not climbing to plat, you probably won't in the future. You'll get hardstuck like a lot of other old accounts. Its fun and games now but you'll probably eventually have to make a new account in the future.