Admin wrote:Sorry, it is not possible, as we need to check each posted message for SPAM, and if we allow editing of past posts, that becomes impossible ...

Ah. Thanks. I saw no sign of a delay for spam-checking of my posts.
Once I mistakenly left sensitive personal data in a screenshot I posted on a no-edit forum, so I'm very wary of this restriction.
Why am I also unable to delete my posts here?