Looks like Jochen restarted his node which would explain the sudden drop and empty mempool between 19:00 - 19:30. I don't think we can't trust the site's estimates just yet because it's currently showing 5 vMBs of unconfirmed transactions in the 70 sat range.
Lately, it has become a bit troublesome, he is purging at times transactions with fees lower than x and the graphics are misleading, I've completely switched to mempool.space it's more user-friendly and a bit more reliable. Also, I love the graphic of the size of the incoming transaction, of course, it doesn't help you predict anything more accurate but I prefer the look.
I assume it's also easier to understand for newbies, you see 5 blocks waiting, you see the minimum few to get in even if nobody send a new one is 167sat/b, you gave up and enjoy the weekend
Mempool will likely be less congested tomorrow. Wait till tomorrow (Sunday), the mempool will be less congested, and likely the transaction will be confirmed.
I'm not so sure. I know things usually get better on Sundays, but I don't think we will see the mempool empty down as low as 70 sats/vbyte over this weekend.
It won't unless the mining in China restarts. We've below 30% right now with only 200k transactions in the last 24 hours, unfortunately, this is still less than what we have on a normal weekend so nope, at this pace we won't see even 100sat.
The other possibility might be that people would stop sending higher fees and wait but I don't see that happening either, Binance is sending 200sat/b transactions like there is no tomorrow and they're still getting deposits even with those fees.
https://blockchair.com/bitcoin/address/1NDyJtNTjmwk5xPNhjgAMu4HDHigtobu1s