From time to time some of my moderators make a lot of threads stickies, one of them made 32 thread sticky. That was horrible by all meaning. I had to tell him to fix that and then he made it to 20. When I visit some forums I also notice such thins. I just think sticky threads should not be more than 10 as a maximum. I think it will be very useful to have some setting to limit sticky threads by forum. So no moderator can make more than the specified number by Admin. I'd like to see such feature within XF.