This post is to show my disagreement and that of many players, the rating should not be lowered.
What is the benefit? It is assumed that we have already earned that elo, they take away our invested time.
Not playing in a certain period should not affect anything
Tier changes every 3 or 2 months.
They don't let players adjust to the metagame.
Players who are learning a new tier will find it more difficult to learn.
We have to breeding pokemon that adjust to the changes.
It gets unbalanced by not being sure if it will work, based only on statistics
Rebuild every time tier is changed
Making the tier change after the season tournaments, in the NU season affects the tier change one day before.