My take has always been that there's a mutual "no requirements other than basic human respect" that goes both ways between maintainers and users. It's totally valid for someone to decide they want to close the source for their repo for pretty much whatever reason they want, because they don't owe me anything; by the same logic, it's also totally valid for me to think that's a poor decision and voice my opinion about it in a public forum, as long as I'm not being disrespectful about it.

Indeed sir, I am simply pointing it out as I thought it to be something that stood out.