Gotcha… as you can see, it probably depends on who you ask!
“Echo chamber” definitely has a negative connotation, which is why I don’t think the specific-purpose group is acting as an echo chamber at least not insofar as they are keeping the group on-topic.
Parker, specifically the Jotter. I still have and use a stainless steel one that I bought in 1999 because I kept losing pens, and I thought that if I spent a little more on one I might take better care of it. It’s my favorite by far.