I wanted to edit a post I created yesterday evening but I couldn't.
The post is 13 hours old and it's the last message of the topic, but it has no "edit" button into it.

If I create now a new post, it has the "edit" button present, so the "edit" feature is not disabled for the whole forum, it's present in some conditions.
I tested with different web brower, Firefox and IE, purging cache and cookies, and using different providers from home and from work : it changes nothing to the issue, the "edit" button is no more available in my previous messages even created yesterday, it appears only on new posts and I imagine only for a limited period of time.
Is this issue shared by other people or am I the only one ?