Perhaps I'm missing something obvious but it's currently impossible to quote any section of someones post. The only thing the qoute button currently does is plonk the entire original post into yours.
From what I've gathered this community platform isn't owned by Adobe so I understand that they can only cascade this request to those that design/maintain it but one can hope...
If you look at the feature set and speed of the community/forum platform that most companies use these days that one is miles ahead. Look at blenderartists.org or ACESCentral.
What I hope to see is for quoting that you can simply select a range of text and you create a quote from it including the tag that notes from who it was.
Example from BlenderArtists