Plugging your email into these search sites probably signs you up for another 10,000 spam mailing lists.
indeed there is a rumour going around that they were then trawling for email id’s at best or worse using it as a further threat, you are entering your email id because you were involved...
i guess guilty by association....
also there is the 2nd larger data dump now...i am guessing this is the pictures, emails and cc numbers...