Unranked should really start in mid bronze
People who do their first 10 games of ranked should start mid bronze really, especially since leveling to 30 is much more easy now. There is a huge skill gap between new level 30s and the average silver player, and any team that gets them usually lose (trust me when i just got to level 30 i kept losing at silver 5)
EDIT: Also, it might have less people complain about "elo hell", because if they were silver the season before and bronze now, they have a higher chance of believing elo hell as they think they deserve silver because they were in it last season, but now they are "stuck" in bronze.
p.s for rito: that might also decrease toxicity