I do know that a lot of these social things (meetup, couchsurfing, facebook events) died out during COVID and that in many places the bounce-back has been lacklustre at best. I don't really know why or what to do about it, but the old days of "move to a new city, meet lots of people on meetup.com events" seem to be gone for many places.
keep up updated on that developer forum. i am interested in joining (in german or english)
20% is pretty good. As long as you can find a free space, attendance shouldn't matter that much. It does vary by seasonality and weather though (very few people want to go to a tech meetup when it's great weather, or additionally if the weather is so bad they don't want to leave the house/office).
Sorry, I'm not familiar with this, is this a reference to something like [1]?
And it's not language- or topic-specific either: Java, JS, golang, cyber security, devops, all types of meetups really aren't what they used to be. You're lucky when you organize an event and more than 20% of registered people show up, even when you made them pay 10 bucks for it that they get back on arrival.
The biggest event I've attended to last year were Chaos events (Gulaschprogrammiernacht / GPN, CCC etc), BSides events, and that's pretty much it. All other events kind of either died out, or have been taken over by software consultancies holding the same old "we are cool with PWAs, Angular and FuGu, now hire us!" type talks that they never change and repeatedly broadcast to as many who will listen.
I tried to start a cybersecurity / devsecops / golang related meetup again, and we're now around 10 regular people of the former ~150+ ones. I am now thinking of starting a dedicated developer forum (maybe even in German), because even reddit isn't what it used to be in this regard.
I don't know what changed specifically, but I think the threshold of "when" people consider going to an event changed radically through COVID, and they rather be a lazy ass in the evening than meet people. Maybe that's the global social depression everyone is talking about. Dunno.
Did you observe similar behaviors?