Sending my work email a calendar invite as the first communication. Just because you want to sell it doesn't mean I want to buy it. Or even hear about it. If a calendar event is the first thing you send me, I will be the avatar of snark. My calendar is busy enough without you inserting yourself into it without my consent.
Because Fedora is open source only to the point of it being pathological. If there isn't am open source driver most time you're just boned. Someone new is going to have a tough time with it, and the community is on average a very "lol rtfm" bunch. Not as bad as Arch, but that's not saying much.
Meanwhile, despite the problems around Ubuntu, Debian communities are much more understanding and helpful. Mint even with old packages is going to be an easier time for a newbie. Certainly a newbie unfamiliar with the way entirely too much of the FOSS community is.