I am one of those 99.5% READ and 0.5% WRITE on Reddit …
I basically use it like a moderately interesting magazine (remember NatGeo/Newsweek/et al?) … flipping through and stopping to read some topic in more depth.
It’s like the Dope. All original content, but with links to outside material. Depending on the subreddit, of course. They can be very, very different from one another.
/r/askhistorians most of all - couple times a day most days (I appreciate the heavy moderating there, but don’t appreciate people who answer what they wanted someone to ask instead of what they actually asked)
/r/funny - every couple days
/r/askeconomics - every couple days
/r/economics - usually after the previous
/r/science - every couple weeks
/r/futurology - every couple weeks
/r/personalfinance - used to be often, not often now
/r/academicbiblical - used to be often, not often now
/r/politics - mostly in election season
/r/askhistory - every couple months
/r/fashionhistory - every couple months
r/foodhistory - couple times a year
All of them have some negatives, but these are the ones I still visit. I also visit game-related subreddits occasionally when I’m playing a new game or looking for info upcoming releases or suggestions on what games to play, but that’s always sporadic and never long-term. Still haven’t found a good modern alternative for Sims 2 or Children of the Nile.
r/the10thdentist is worth checking out, 9 out of 10 dentists recommend/endorse - the 10th dentist’s opinion went against the grain - that’s the idea of the sub anyway, there’s the odd one or 2 that are popular opinions but most are pretty unpopular.
Aldi & Trader Joes. These both have products come and go and tapping into the subs gets some really good intel.
A read a bunch of cooking subs: grilling, sousvide, bbq, askculinary.
Cannersardines, hotdogs, vintagemenus,
A bunch of local Chicago and area suburb subs.
I don’t consider myself a Redditor, but here on the SDMB a few years ago, somebody linked to r/VintageMenus, and I followed the link.
Fascinating! All kinds of old menus: fine dining, lunch counters, delis, state dinners, airline meals and ocean liner dining rooms, Italian, Chinese, Greek, and the list goes on. Most are from the US, but other countries have a presence there, and it was fun to see some familiar places from my hometown of Toronto. I still look in from time to time.
Ah, for the days of tomato juice and relish trays as appetizers!