In short, it's just a simple comment on the article you found when you scanned the list.
For some articles that have lowered JJ's overall level... Complaints are the majority, and occasionally there may be some suggestions (of course I know the author will not read them). For good articles... It will probably be a long review =w=
Recommendations are welcome, and authors are welcome to come for abuse, but... For authors who submit their own articles but only want to hear good things, please feel free to be tactful.