Not really, because arguably people can edit a post a couple of times and I think that will probably lose the version history... - we do though have rolling backups as well - it just all becomes more hassle for the mod team.Isn't that the end of the perceived/ potential problem, then? Leave everyone a long editing time, and if someone stomps off in a huff and deletes their posts, you just wait a while and restore them all.
The point was also made above that worrying about edited / deleted posts is a commercial approach - that is to totally miss the point, this is a community of people, if one person has a strop, (and let's not fool ourselves into thinking that no-one here would ever do that ) then it creates an issue with the flow of threads / information / etc. for all in the community - they are damaging what is being built by the whole community - not some simple commercial issue, but a genuine issue where people spend time committing to a group of people / committing to sharing knowledge - without which we would not have this forum - is it fair on all those others who have put themselves and their time into sharing to have one person who is selfish and breaks it?
That is much more the concern - the efforts Mark has put into this forum, and the team over the years (and then me more recently) are not about making money - it costs money! Instead it is because that team believes in building a great community and resource, and that does mean balancing needs / making it work for all, not just those who shout the loudest!