For as far as dropping to a lower league goes, I do that with my 2nd account in silver and it's also just not fun since I'm playing against level 1 summoners in most matches and there is no challenge as I'm just winning because I have better cards. Getting inside the top 25 just comes down to playing a crazy amount of matches which gives bots again a big advantage over normal players.

I really hope they start seeing the broken matchup system as a big issue to solve.