A pity you are leaving, Dirk.
I have had a few of my photos deleted. It is easy to first get angry about this. It is not easy, to judge own photos in an objective way. I have started doing it like this, some years now:
After first shock and anger, I look at the photos again and read the reason of deletion and I must say, that yesss the admins who deleted - had a good reason to do this! My photos were not according to policy here. Of course admin can get it wrong too, in that case, you should contact webmaster and since there is always 2 people viewing a photo, in that case I am very positive, a decision can be revised or you can also get advice about enhancing a photo.
A pity you are leaving as I said, but one should not try to stop travellers, as we say in Germany.
Greetings,
Cornelia