I've been playing pretty much every day since 1.5 (not sure when exactly they added server-side saves) and haven't been banned (yet). I used CheatEngine a long time ago to power level all my survivors and killers to P3 w/all perks, as well as to change the majority of my shitty addons/offerings to good ones. Looking at my profile, it'd be pretty obvious I cheated, so here's hoping they don't do that. Your profile being private only really help protect you from getting reported by other players for having suspicious DbD playtime/achievements.