Why can't we edit our posts?

I wish you could do it, just in first 3 minutes would be helpful??

On another forum I go on you can only edit your post until someone else has posted.

I agree that it's annoying that you can't correct typos - sometimes I miss mine even if I do preview!

If we all bothered to use preview of course.... There would be no typos!?

They say they don't want people altering their posts (e.g. oh dear, wish I hadn't said that) at a later stage in the thread, thus rendering all following posts senseless.

Other forums allow it; still can't understand why it would confuse people on here .

Why too confusing. Most forums give you a few minutes to edit- with the rule that you should not add to the post after someone has replied.
Simple enough.

They won't let yer! It's been asked before, loads of times. I'm with 'em on this. Would be too confusing.