"but if i post a reaction to people being reactive, arent i then complicit in reactivity?"
Ah, you've stumbled on the Poster's Paradox, one of the classic quandaries. Luckily, after decades of contentious thought experiments, we now understand how to avoid entering that labyrinth: just, yknow, don't post so much about the people who are being downers, i guess. maybe share a bread recipe or something instead.