50K users of blockchain.com emerging every day that is nice, probably the real one on that having many accounts that may be used in a scam or other activities that fooling people. Once they had got a payment or those stealing bitcoin from the wallet, easy to change their wallet since it is not strict when making another account.(IMO)
Also possible happen that probably many people now adopting crypto and they make to start making wallet each.
In short, these arent actual numbers of users that do make sign ups because tendency on having multiple address and creation of wallet on a single day can possibly be owned by a single person which you had further mentioned.Its good to see a glimpse of adoption due to those numbers but either real users or older ones wont really make any differences. $50k a day is too absurd and imagine with the current market condition we cant really say these numbers are even plausible.
It's a waste of time and money if someone has come of an idea to make a lot of blockchain wallet just to pass some fractions of their coins. It's more than what we have imagined IMO, i think more users are now into crypto. And these numbers will keep on increasing each and every day so blockchain dev's should expect it already.
I think those users are now learning on how to gain a profit during bear trend because all they have to do is to HODL, but the impact of supply and demand in the market is yet not really affecting that much to these new users.