1.1.1.1 is cloudflare dns. You can run a constant ping to it, forever, with no problem. Same with 8.8.8.8, which is google. If you want something more FOSS oriented, go with OpenDNS.
Doing so doesn’t really expose much information about you, the concern here really isn’t warranted
Because alcohol is poison and you’re drinking too much of it. If you’re puking at all you already over did it.