Reviving an old thread about timestamps here:
Sometimes I turn timestamps off, to keep the "Recents" tab useful for students -- so they can see what's actually substantively new, without getting distracted by minor edits. (In TWC, I liked the ability to close an individual tiddler's edit session using some extra modification keystroke, so that the save registers as "minor" and not worthy of updating the modified timestamp.)
If I happen to create a tiddler in TW5 while timestamps are off, the tiddler ends up without a create date. Once I've created it, it seems TW5 won't even back-fill the create date to coincide with the first recognized modification date (once timestamps are back on). So the only way I've found to give it a create date is to clone it and delete the original. That works fine if I realize right away, but gives misleading results if I catch it significantly later.
I do see these reasons not to make these fields easily modifiable (as they were in TWC), but then there ought to be more options...
Perhaps someone can easily tweak the timestamps toggle so that it affects modification timestamps but not creation timestamps?