Demoting should stop after a certain point

I love the new free win when promoting into a tier you've been in or have been in promos for before... it's great!

But, I think it should be backed up by a similar demotion prevention. I have been in Silver I 9 times this season, been in gold promos a couple of times, demoted as far as Silver 5 twice to claw my way back up.

Most of the time I wind up getting demoted is due to an unlucky streak of afks & trolls, or games where 3-4 people on the team feed and there's no coming back. I have never ONCE felt like "Oh yea, I lost that string of games all fair and square and probably should not be here".

I think if you promote into the same tier more than lets say 3 times, the system should give you like a 3 game demotion prevention or something next time you hit rock bottom.

Either that or riot should stop causing you to lose LP when there's an obvious AFK, 13 of my last 20 games had an AFK in them.