Ok, I cannot agree more with this topic. And if I may I want to add a couple of things that probably just didn't happen to you and slipped your attention.
Oddly, when a "post edited", "post deleted" or "user warned" action is logged, the links provided are: "view forum" and "view topic".
That IMHO is quite useless. I mean why get in trouble to extract topic and forum information for a deleted or edited post? How will you actually find the post? And why link to the forum when a user is warned? That's best described as bug rather than a feature missing.
So I'd like add my vote on this and add:
1) Add a link to user profile and actual post when a post edit is logged. Probably drop links to forum/topic.
2) Add a link to user profile when a user warned is logged, and also a link to the actual post if warned for a specific post and not through profile.
3) Add a link to user profile when a post deleted is logged and (with a question mark) a link to the post deleted just for those who have some kind of soft delete configured?