When I started at Twilio, I set my title on whatever chat we were using to something silly like "Director of Naptime Initiatives". (Well, ok, when I started we just had a poorly-used internal IRC server, so I guess this was a bit later when we got HipChat or whatever.) Sadly, these days the title field on Slack is synced with Active Directory, which has the human-readable title name, plus the level number.

It's really dehumanizing. I think I'd rather not know people's titles, just what team they're on, and their role.

At my current company, where I've been for over ten years, I've always just made up a title to match my current focus/what seemed "fresh." My original external title that was made up to hire me didn't actually make a lot of sense and differed from the internal HR title anyway.

Ended up doing something similar in my original tech job as well. I'm not sure I've ever really used my official HR title and would probably have to look it up to be sure I'm remembering it correctly.

I've personally set my title to "Shennanigans Regularly Effected".

Also, lots of folk deliberately opt out of level visibility, too.

I didn't know you could opt out of level visibility!