Um I realize I am very late to this but how tf did fastestfee go all the way up to 50+ sats/vb a few days ago? 
Probably some new ordinal drop or a BRC drop? There's so many of these it's hard to keep track. It's like the shitcoin craze of 2013 or the ICO bubble of 2017.
Yes it was the whole Runes launch by Rodarmor. He got bored with Ordinals and invented a new ordinals-like system... Seems like he's just trying to milk a cash cow by this point. I suspect this fad will be even more short-lived than Ordinals.