A compromise can exist. One board I use about same size as FT is
www.cruisecritic.com
On that you may edit a post for up to 5 or 10 minutes after it is made. That allows you to correct a typo/spelling error you notice on reading the posted thread, or correcting a HTML link etc.
After THAT period
no edits can be made by user. thadocta's exampled person then is not able to totally re-write a thread from what it was to something totally un-related which we have seen happen in one Forum at least.
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Glen ~
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