It struck me as rude. But I also understand that too much time on HN (in particular) and I can get a little put off by some of the cynicism I see in the comments.

Is the cynicism concern trolling? I'm not sure. Certainly there are people "with agendas" that would toss cynical remarks into a discussion thread like they were thought-grenades.

But the more erudite leanings of HN also attracts a kind of skepticism from people who want to post as naysayers because it suggests they have already perceived the issue, saw its failings, and have moved on ... intellectually.

I hate to even post the above because I'm pointing too many fingers and don't wish to put anyone on the defensive. (There are other reasons I am sure someone would post a contrarian comment.) I wanted to explain though why I don't immediately jump to "concern troll" when I see a negative comment put forth on a story about a very progressive idea.

It was a little rude, certainly.

Whether uncalled-for or not depends on your intent. Only you are in a position to know for sure. My own feeling was that the comment was mostly deserved.

Objections and problems raised against proposed solutions to critical issues, just left for someone else to solve feels disingenuous. Whether not it actually is.

Maybe, next time try to solve your own objections and we won't get the drama.

It is rude to troll. Solar panels have been going up on roofs for probably longer than you have been alive. Do you post "concerns" about weather for every single other thing mentioned that is outside? Wind turbines? Cars?

It does seem strangely rude.