Unwanted email, aka spam, is becoming more common on the internet. They all need their hands slapped on occasion and they knew the rules when they started. You've told her no when she wanted to put something else on her plate, teaching her limits that when I say no to, she ignores. The players range in age from 11-18. Some don't wish to take no for an answer.
Some adults think parenting means avoiding confrontation at all costs.
When I say no or whoa it's with an overview of what's good for everyone in the game. This is not an unsupervised playground. Suspensions, asking players to leave Jr Riders is for discussion of all things equestrian by and for junior riders. No flaming, nipping or kicking or writing in all caps. The game digests are for game play only.