Petition to remove roadmap.
It's very misleading.
People act based on what they see there and get pissed off when it "changes at a whim" as u call it.
That's it.
Ps: someone said petitions are not allowed, by petition I meant request..I'm not a native English speaker, my bad.
28-8-2021:
In conclusion i think most people who are against roadmap including me is because of it's uncertainty aspect..so maybe reduce the time period it shows to 1-2 months and post events that will occur in the mentioned date or few weeks/month around the mentioned date rather than just removing it from the roadmap(postpone them).