Why are bronze to gold players dropped down during placements?

I understand challenger and master players getting dropped down but why the lower tiers, Riot are just punishing the majority of there player base and it makes no sense to me. Do they legitimately think people enjoy getting pushed in the mud every season and enjoy climbing out? can someone actually tell me why Riot does this? because it honestly just makes me feel drained when I go 8/2 and get demoted. going 8/2 should be a bloody fun and awesome thing but it isn't.
Report as:
Offensive Spam Harassment Incorrect Board