Thank you for your reply.
I understand some things better !
But, there is one more thing i don't understand.
yesterday, i have done some BG "rune".
I've done lvl 228 ,229 and my new max was 230 but with no more task to do it. (The little quest we gain when we done BG max.)
There is a prerequisite to obtain the new task for doing 230 (and the other after that) ?
There is a timer to slow down progress ? (Wait a week between 10 max lvl)
Thank you one more time for taking the time to explain.

does it show here that im kinda showing off ? if not then yes its true