Probably one of those switching pools. Most likely mining monero or something like Kaspa and then converting the payment into sats
Discussion
here's my most recent one

you mined that on your phone?
You can't mine bitcoin on your phone.
Yeah just because you have a transaction doesn't mean shit. I heated my house (in PA) with 3 S9s before and I had to open the windows sometimes and those are low end machines.
In fact people underclock them and use them for space heaters so yeah I'm calling BS too.
I do.
oh yeah 😂
how many H/s you get on 3 watts rofl
I sell soap. I only accept Sats as pymt. I basically run my business on my phone.
MY PHONE MINES SATS. 🤷