It was not unexplained—I sent you a private message about it. Please check your private messages by clicking your user icon on the top right, and clicking the envelope icon. I would also suggest you enable email notification when someone PMs you; you can do it on this page by checking the “Send me an email when someone messages me” box.
Everything that happened in the thread was just a misunderstanding which you blew out of proportion in a way that negatively and substantially distracted from the original discussion, hence the deletions.
Regarding the edit feature: I agree that one should avoid editing the meaning in ways that confuse the flow of discussion for current participants or later readers. However, in general I think the edit feature is a huge step forward compared to email, which is locked in stone forever. Some examples:
- Not all topics are conversations—the forum can also be used e.g. to create guides or documentation, at which point the ability to fully edit in the future remains extremely useful.
- Editing is very useful to update/fix URLs which have gone defunct.
- Editing is useful to annotate an old post with now-misleading-or-incorrect information. You can use
strikethrough to leave the old text in place, and then write “Edit: …” to explain the updated situation.
I strongly vote to leave the edit function as is. Also because I would have to be the one to implement the change technically, and I have no bandwidth to do it. I see no clear advantage that would justify the quantity of time such a change would require.