I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
I occasionally connect to a public wifi and then try connecting to something known to see if the certs match. It's surprising how many "real" public wifi points do this. Virgin Trains, for example, MITM everything for their "free" wifi.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Sounds like the world needs FON.
I occasionally connect to a public wifi and then try connecting to something known to see if the certs match. It's surprising how many "real" public wifi points do this. Virgin Trains, for example, MITM everything for their "free" wifi.