One thing I want to say for anyone who's under 18 and is being asked to do inappropriate things by an adult, it's okay to delete/block them and move on with your life. A particular tactic predators use is to appeal to your sympathy by making you feel special or like you're their friend. But if they're an adult who targets children, then they're not your friend at all. I never see people talking about how kids end up in these situations but I wish more people would, getting groomed by someone who you think is a genuinely nice person can be really damaging even if it doesn't come to the point of sexual abuse. If you're not sure if you're getting groomed, try to think about what your parents/any trusted adult would think about the messages someone sends you. If it'd upset them somehow you probably have your answer.
edit to mention this:
funhaver1998this shit was not happening like this in 2013
As someone who started playing competitive tf2 in 2012, it absolutely did. The main two people in my situation have stopped playing. But when I came back to tf2 I was really surprised viper still played on teams, just wanna add my voice and say fuck that guy he is definitely a creep.