Spelling errors on professional documents, especially signs/posters/ads. You don’t have to know everything, but you have to check before putting it up.
When I see restaurant specials boards riddled with mistakes it makes me want to not eat there.
I’d only recommend Proton if a) you’re already paying for their suite or b) you’re not using Linux. Otherwise, Mullvad is the way to go IMO.
I propose we temporarily adopt the “trade war” flag