Hm.... may be I talk a bit about the reason I bring this topic. It is kind of joke or informal discussion one time I have with a very experienced player.
"hey dog, could you set kinds of ranking system?" he is definitely an ACE, with completed games more than me, kill dif. better than me, win % higher than me, (and even salary better than me in real life

)
"why?" I asked, as I know he seldom ask *silly* question.
"I am sick of those X%&£"&$^(screened) rookie or newbie or sort, they join the site for two days and sign in my leagues and stop moving and ruin it!!!!!"
"hm. ... well.... you know...."
"sxxxxx, I know what you are talking, webmaster is too busy for program change, isn't it? Actually what I want is really simple. Set some prequisite for league game. Could we have a kind of rank as Rookie/Novice/Expert/Master, so I could limit who could join my game?!?!"
"hm. ... well.... you know...."
"stop bsxxxxxx, I konw you have the power. dog, don't tease me, you have the direct phone no./ whatsapp/ real address and even the magic admin button to kill any user!!!" (actually I don't have anything he mention

)
"hm. ... well.... you know...."
"okokok, next time when you talk to justy/webmaster, could you help pass this suggestion to him?"
"hm. ... well.... you know...."
"please dog, help me or I will shot down your plane" (well on that game I am already gliding, and with only 1 wing left, his coercion has kind of impact to me)
"okay, if you promise not shot me down. I will propose it next time on our AGM"
He keeps his promise, but I still can't home cause there is another opp. shot me. But as he keep his word, I have no choice but to follow

.
All the rest is history.
Enjoy discussion fun.
I never told you anything like that. Nor I've problems with rookie or newbie of any sort since I would close me inside a cage, and I don't like cages.
The only problem is when a new player opens too much games and is over helmed by their number, but that is a problem that has been solved.