My first question "A question regarding the Continuum Hypothesis" (which I answered), was recently downvoted after several years of staying at the same score.
Since I (with 20/20 hindsight) believe I can ask the question in a better way than originally asked, I was prepared to delete both question and answer and re-ask it differently than I had originally done.
When I had attempted to do this, I was essentially 'accosted' by a warning that if I continued to delete answered questions (I don't believe I have done any of this) I would be blocked from asking further questions.
The reason the warning gave for this was to keep the knowledge contained in the answer from being lost. What gives? Since I answered my own question the fact that it keeps getting downvoted suggests that the MathOverflow community believes there is no 'knowledge' contained therein.
Can the community have it both ways? I'd like to know.