George you are welcome to edit any of your own posts for the first 24 hours, after that the ability goes away. We were hacked in 2005 and lost ALL the topics and ALL the pictures, basically had to start from scratch. So, we're a bit hesitant to add functionality and I think you can understand that. After 24 hours, editing posts doesn't really add to the view ability. It doesn't "show" as a new post and anyone that's already read the post is unlikely to reread just to find out what's changed.
There are more than 20 different kinds of forum software. Each has different programming that does different things. They may look similar on the screen, but can be totally different underneath.
All of the three main fiberglass forums use the same software, so those that belong to those forums are used to the edit complex. I doubt we'd change to pattern this software after some other focus group.
Besides, the best edit.... is the one you make before
you hit the add reply button.
BTW: I've edited over 3,000 posts in the past 3 years. Mostly spelling errors that would effect search etc. I like the full edit at the top
since I use it so much.