I feel you... Running NetStumbler as well as some other tools such as Kismet on a laptop using an Orinoco Wi-Fi PCMCIA card with special firmware / drivers which offered 'Monitor Mode', those were the days...
I still go around and war drive and upload em to WiGLE!
They make it really easy now. They even have an app you can download on your phone and just open up while driving and start logging and then it just uploads it to WiGLE when you hit stop.
Well - back then, it was "new and shiny" - now, I haven't done it myself the intervening decades.
If you are interested in radio/security, I could see it being an on-going thing. Myself, I rarely uploaded to WiGLE (just used it to peruse regions that were "unmapped") - but, these were also back in the "before-times" when ubiquitous cell network data connectivity was expensive - so, I did my mapping using an offline version of Microsoft MapPoint with NetStumbler on my laptop in combination with a VBScript interface I wrote that would drive MapPoint and visually display findings.
After posting this yesterday - I checked WiGLE for my home and office wifi networks - which have been around with the same SSID for 5+ years and they are not listed, so not many people are actively wardriving these days.
But - like any hobby, there are always a few people in the "long-tail".
What I mean is, you are actively choosing to collect and make available data that can be used to track people, to hack people, to deanonymize users, and even to harm others. This is literally crowdsourced spying on your neighbors. Why participate?