In "messages" table of default database structure of SMF 2.0 we have a column declared as "modified_name".
Today I noticed that SMF saves the username of the person who has modified the post, instead of his user id.
Why not to save the "user id" of the person modifying the post instead of his name.
We can pull out the data of the person who has modified the post and instead of usernames we can have their profile links in posts.
What happens when they delete their account?
Ummm wired thought, change the id's with the username in that case.