Welcome aboard!
As for being a Pentaxian?
You probably want to start out as a "Pentax User".
To be a Pentaxian, you might have to do/experience a few things.
Like....
Pentax is sold/bought to another company and you live through it.
You wait years to get certain updates - either on a camera or lens.
You realize there are no firmware hacks for Pentax cameras.
You are made fun of for choosing Pentax.
You have an opinion on AOC, Honeywell, Hoya and Ricoh.
You find a niche in an era of Pentax greatness.
You do not change/modify/mod any Pentax legacy glass.
You complain (at least once) about the FF (for or against, it doesn't matter)
You covet a 645D or DA HD 560mm.
etc. etc. etc.
And finally, since you gave away your M42 legacy glass, you probably can't EVER be called a Pentaxian.
You might actually be banished.
Seriously. Welcome new Pentax User.