change of rating alters glicko.... its there to prevent players who arent that rating from being that rating and have to farm the way up
The Principle of Glicko RD is... Questionable (?)

and its not 0, glicko gets to the point every game its 8 change and at grnadmaster rating it finally gets lower from games and low or because of the rating system (not glicko) theres less change

More or less 100% of your propositions / statements / etc are false.
Congrats, that takes effort.

Also this is... perhaps not the best place to post criticism of Glicko, because Glicko is not a chess.com invention, it's the invention of a Harvard professor of statistics and used by more than just chess websites.

Ok thanks for correcting me, tbh the information relating to Glicko RD is outright rare and it's good to know more about it.

The site has removed the Glicko RD from all the stats pages on the website.
The reason wasn't explained.
I don't know if it was just considered too confusing to people or if chess.com has some other rating system in mind.

I had a nice explanation of the functionality of RD typed up, but the site at it.
So fk off chess.com.

The site has removed the Glicko RD from all the stats pages on the website.
The reason wasn't explained.
Because people who majored in advertising don't understand data or the people who find it useful.

its there to prevent players who arent that rating from being that rating and have to farm the way up
No, it's primarily there to stabilize the system of ratings so that 1200 from 5 years ago and 1200 today represent the same level of skill.
What that means for individuals is that you can expect your rating to go up only when you preform better and down only when you preform worse.
glicko can increase
edit: so the original guy deleted his comment and yeah i got ownership sadly of the forum
so basically he said glicko system was messed up which is not true