Some people, in their CV or publication list, add bibliometric information to each entry. I've typically seen:
- mention the impact factor of each journal
- number of citations of each paper
- mention the acceptance rate of each conference
I'm not sure it is very helpful: people from your field will surely know the journals/conferences, while people from outside your field might be more interested in a “macro” view and not go into the minute details of your publications.
Moreover, I'm not sure I like the tone it conveys: it feels like bragging (this is typically done by people who are proud of these indicators), and a bit over-the-top to me. Finally, it's well accepted by now that things like the journal impact factor are a poor measure of individual papers' merits.
So: is it accepted practice to do it? does it improve the CV? or does it risk alienating the reader?