By my math, there are now 126 entries in the portfolios. Of these, if we exclude all comments made on each entry by that entry's author, only 4 have more than 1 comment. Of the 122 remaining, the majority have 0 comments not by the author, and the minority have 1 such comment.
I could discuss this as something to fix, but to be honest, I'm not exactly sure what the purpose of the portfolios is, so I don't know whether this is even something to fix. Is there any problem with portfolios remaining largely uncommented? If so, how can mods and users encourage more commenting?