There is only a certain window of time (a few minutes, from memory) during which edits can be made, reducing the need for the extra complexity of implementing it.
Maybe a separate sub-reddit for bug related topics, to group them all together, or a tag.
They should show up in the liked and disliked pages of your user profile. If they don't, then there is a bug!
(The 'tabs' will show up if the user, like yourself, has the option selected).
Then again, maybe not. Hmm. Official word?