I know they have been on as im talking but i'd want to write it. If you could not login around 5minutes ago this is the reason: Minecraft Runs On Multipile Servers Hosting Each Systems: Login Session Website Textures And Realms. The session has been down for around 6 minutes as i joined to Hypixel to see what was going on. Everyone was literally screaming about being default skin. Its because the session servers are down and Hypixel uses a plugin called AlwaysOnline. I Suggest J&H using it its pretty useful. When Always Online Plugin Is Active, Old Players Aka Already Logged in before players can join with the same ip. Since this works with offline mojang servers and sessions were down, It activated and as normal people did not have skins. I don't know if Session has affiliatons with the Skins but it may be the working style of the plugin too. Just wanted to inform people Fussing about it everywhere.
There's a "suggestions" tab if you want to suggest plugins etc. but I do agree with you nevertheless. :)
