r/notjustbikes. The man himself no longer wants to use reddit without third-party clients or moderate the community without access to the API, so the community is basically gone forever unless reddit decides to revert the change, which won't happen. It was the best urbanist sub and nothing can quite replace it.

r/Buttcoin

All the mycology subs, but I'm thinking of rebooting them here. All the synthesizer subs. All the subs with eerie places like r/AbandonedPorn, r/RustyRails etc.

I'm going to miss browsing r/all for a good laugh and interesting stuff. I'm going to miss stumbling upon random subreddits with topics and interests I didn't even know existed like r/Jarrarium, r/DesirePath or r/ThatBathroomMazeDream

I think losing the ability to lurk in active communities of people I disagree with politically. I would never engage as it didn't seem right, especially down/upvoting, but It was always interesting to see things from the other perspective.

So places like r/tories, r/conservative, r/prolife, r/liberalgunowners - as a guy from the UK a lot of the subjects discussed in a few of those didn't affect me but I always prefer seeing things from both sides (even if I would never agree with them)

r/wellworn for sure. It was a comfort scroll for me.

r/WhatIsThisThing, r/TipOfMyTongue, and similar subreddits. Some of the simplest and best examples of the power of crowdsourced knowledge. Take a simple question with a simple answer that is basically impossible to search through conventional means, but through the power of those communities you can get your answer in minutes. Simply amazing.

Lemmy is going to have to get huge before it can really replace them. :/

I'm a bug enthusiast, so insect specific subreddits like r/moth r/weevil r/entomology

Game ones for all my random niche games I like.

But also I have a lot of health problems so going to those specific subs with my specific problem and knowing I'm not crazy felt really liberating. I know there's a new disability thing on here, but collectively being in a community with the people who have my specific problem made me feel less alone.

/r/whowouldwin :(

Also /r/tiktokcringe, so many of the videos there had me nearly in tears in laughter

I participated quite a bit in r/whatsthisbug and r/spiders helping identify bugs (mostly spiders) for people. It was something I really liked doing, especially educating people about how spiders aren't things to worry about. Guess I'll just head back to iNaturalist for that content.

Other than that, more niche gaming communities were a big one for me. r/puzzleanddragons is a mobile game I play often and the sub was super helpful for news and game discussion/guides. I hope it can kick off here.

r/Fedora and r/ThinkPad. Those are the two I spent the most time in. I will also really miss my guilty pleasure subreddits like r/gaystoriesgonwild, r/Twinks, and r/GayKink. Haha.

/r/hoggit and some flight simulation ones. Someone created an instance to cover this but seems it went down. I guess this madness needs some settling down.
Eventually I'll end up finding my way.

For me, it's going to be r/SkyGame (the game itself speaks of humanity at its best, coupled with scenescapes and moments that will leave you agape in awe and pain), r/HFY (astounding, original stories and serials about humanity at its best, even through moments of suffering within the wider multiverse), and r/FilipinoHistory (an intelligently-enough discourse space for all things Philippine history, culture, and society as a whole).

r/abruptchaos and r/prequelmemes for me

r/aspiememes

Well first off, I'm gonna miss my favorite nerdy subreddits. r/wow, r/Morrowind, r/Oblivion, r/Skyrim, r/Elderscrolls, and even r/trueSTL. Happy that Skyrimmods is here though!

Aside from that though, r/botchedsurgeries, r/amitheasshole, and r/hobbydrama.

The rest would be various animal subs, but hopefully, they find new homes quickly.

SummonerSchool and CompetitiveTFT, I know there are discords but I don't like its format.

Where my r/futurama_sleepers at

/r/feedthebeast, I love modded minecraft!

/r/opensignups. Not sure where I'm gonna find out stuff like this. Guess there's some forums.

I’ll surely miss my carefully crafted porn collection curated to my tastes. Pressing Delete button was hard.