I have no problem with demos using stickies in mge HOWEVER in pub mge servers and against people you don't know, I feel that it doesn't hurt at all to ask "Do you mind if I play demo?" Most people will know what you mean and won't have a problem with it. The reason people ask is because no one really wants to play against a demo who backs up into a choke and stickies himself out, esp on scout v demo. I understand that you need practice and I'm fine with that but the general unspoken "etiquette" if you really wanna put it that way imo is that you play it with people you know and you ask against strangers who might not feel like playing it. You can also opt to not ask but if they !remove it shouldn't be unexpected and you can't really fault them for it. Just my opinion though, I could be wrong.