I do hang out at Reddit but so far I haven't found a sub as good as ETS. While I don't post every day here I do visit multiple times per day. Generally I try to post only if I can add something substantive to the discussion.
I don't do Reddit, but agree about posting.
I pop in about once a month.
Notice the same topics and about the same 5-10 posters.
At the end of the day, though, a lot of the posts are pretty similar. For most of us in N America, there's really only a few things to prep for: loss of power in really hot or really cold weather; hurricanes; tornadoes; earthquakes; civil unrest, and the scary but mythical EMP (which I only care about when it knocks out the power grid, not if my radio and car don't work). That covers like 99% of issues, and if you can cover down on those, you should be good for the other 1%.
Biggest prep most people miss is personal health and wealth (which won'tbuy happiness, but waiting out a disaster by taking a trip to Europe for 2 weeks seems better than gutting it out at home), neither of which this board focuses on.