Not fair? The scheme currently covers 5 seasons, therefore at the end of every season - and as the new season kicks in - then the oldest season has to drop off. That’s your 250 points or so dropping off. Same as everybody else.
Here’s more bad news, there is talk of it dropping to 3 seasons instead of 5 - so you might have another two full seasons to drop off still.
Of course, the tier levels will be re-aligned as well but we don’t know what they will be yet.
You really could do with reading at least some of the thread mate.