Historically, when you view one of your writeups (e.g. a CUFP post), you are given a form right there in which to edit your post if you wish. The form fields for that were in the same form as the node voting buttons. This enabled surprising behavior, described here. Therefore, I have removed the "edit" form from the main display view of your posts and pushed it off into a separate edit page. So now, if you visit one of your writeups, you won't see an edit form right there, but you will see an 'Edit' link in the upper right.
This change has already been in effect for about three months (as I mentioned) for certain sections — Obfuscated Code, Perl Poetry, Meditations, maybe others — and is now in effect for all sections: CUFP, PMD, Obfu, Meditations, News, SoPW, Tutorials, Inner Scriptorium, Poetry, Snippets, Code Catacombs, even Craft, as well as your replies in any section, and any posts of yours which have been thrown into the Off Topic bin.
Update: Based on feedback from users such as BrowserUK below, I have added a user display option to have the writeup edit form directly on the display page, below the writeup, as previously. However, it is now enclosed in a separate form from the voting buttons, so that the "surprising behavior" can no longer occur.