I think the main solution is to have an easy way of searching for existing communities before deciding to make you own. browse.feddit.de seems to be a good step in that direction to me.
astronomy_geek
After just getting started learning to do my own car maintenance, definitely the subreddit dedicated to my model of car
"We're offline working to restore access to subreddits that went private for some reason" - Reddit, probably later today
Same. I also like using Fedora on my desktop at home as a way of maintaining familiarity with RHEL, which I use a lot at work.
Side note - is there a straightforward way to search through posts across the Fediverse? I know it's probably not going to be a simple as Googling "thing i want to know site:reddit.com"
People have been joking lately about productivity suddenly increasing as a result of the Reddit blackout, but honestly? That loss of information is probably going to result in a loss of productivity in some cases.
Because yeah, in the nightmare scenario where both Reddit and Stack Overflow were to disappear, a lot of programmers would be at a complete loss.
Besides just the memes and discussions on current events, I am really going to miss all the little subreddits I browsed. Researching product options, learning how to start hobbies, finding the answers to niche questions, getting technical support, etc. - Reddit made that information pretty available and reliable, and it's inevitably going to take a long time for those communities to grow large enough in the Fediverse or elsewhere.
No idea honestly. My best guess would be that browse.feddit.de hasn't cached those communities yet if you just recently created them. There's options to turn on/off different instances in the sidebar, and it looks like feddit.de is on by default.