Saying 8K trophies a week seems fishy, is not polite. It is a passive aggressive method of calling someone a cheater. If this was not your intent, then you need to adjust your use of language.
I'm not a hard core player, and I'm at 200 trophies for the week as of today, with 3 days left until reset. I've donated around 400k this week, and I won't be the top donor at the end of the week.
IMO, Top guilds probably aren't pushing trophies hard. Anonymous has tasted blood in the water and is pushing for it.
I'm sure I could push out 400 trophies a week, but it would burn me out on the game. So 30 motivated players could hit 9,000 trophies a week. They will probably burn out at some point, but the closer they get to the goal, the more pressure they will put on themselves to grind out a few more trophies.