I have wanted to link a community a couple of times, but didn't because it seems unclear how to do it actually well. I've managed to do it once, I think. Another time didn't manage.
Maybe there should be a clear and simple to use button in the format area to add a community link?
I'm even a little suspicious that Twitter style messaging has played a part in "gotcha" politics that seem very popular everywhere, where some populists manage to gather a large following mostly by just using slick one-liners with relatively little substance.
Now sure, these have always existed and will likely exist, but I seem to see more and more of them with ever bigger popularity.
I know it got me a bit, I used to browse subreddits dedicated to twitter owns, but realised that those were reeeally bad for me.