[therufa]

Not like anybody is checking this, I'm speaking from e experience. I had several coworkers over the years who used to live for much longer in Schengen countries without registration. In Austria this works moderately well so does it in Hungary, but of course it has some drawbacks too. Usually in countries where people tend to curb laws to their liking as well as "forget" to pay taxes (this is the case for Hungary) more often than not, this visa situation not a big deal

[istorical]

Yes, yes they are.

[atatatat]

Enforcement may be discretionary in some regions, but like all arrangements like this, don't stake your life on such.