Honestly, I didn't even Blockchair were running ads at all, let alone ads for scammers. I just stopped using them cause their new layout is so bad.
I never use Blochair website, or should I say almost never, because sometimes I click on link that someone sent me from blockchair.Much better and cleaner alternative in my opinion is mempool.space, and it's not supporting bunch of shitcoins like it's competition.
One more good thing, mempool.space is fully open source, you can run it with your own node and you don't have to trust any third party.
Blockchair is pretty decent of an explorer. I like for somethings. One of the handy features is that it shows if an address has any fork coins locked within. I was using it almost exclusively for a while until several months ago when a discussion about privacy caused me to switch to mempool.space.
I've been (slowly) attempting to launch my own instance of mempool, but I was trying to build it from code, and implement it myself with ngix and npm and nodejs, and oh my god what a shit-show. Last weekend I finally broke down and tried the docker image. Still having some trouble, but I'm getting closer.
As for the ads in blockchair, at least they give you the option to turn them off temporarily without an ad-blocker. Not too many sites offer such a feature.
