This is an absolutely fascinating thread and I'm glad to have stumbled across it as I meander my way through the forum, familiarising myself with the etiquette here.
I'm new here and I joined simply because I've been hunting for an active writer's forum, a place where I can offer and receive feedback, in the spirit of reciprocity.
Now, I have to confess that when it comes to critiquing poetry (and other forms of writing), I'm relatively new to it, in an online forum anyway. I have a lot to learn when it comes to online critiques as I'm used to providing feedback face-to-face. But I'm sure that, whether online or face-to-face, there are certain criteria critters (have I got that phrase right?) and writers would want to adhere to, such as, for example, courtesy, understanding that the critique is about the material itself and not the person writing it, etc. I know how nerve-wracking it can be to be on the receiving end and yet, I also know from experience how delicate the issue can be if one is providing the feedback. Thinking back, for me, it comes down to a certain amount of self-reflexivity when it comes to providing the feedback because the last thing I'd wanted is to trigger a flood of tears in one of my students. Maybe I'm just a soft-hearted fool.
I don't know if I made any sense here...