No, I don't think so. DB entries are deleted when they're found to be duplicates, misspelled duplicates, synonyms, or invalid names, and these facts sometimes are not discovered for weeks or months. Any photos or comments attached to these entries are moved rather than being deleted, and the photo and comment contributors are notified of the move in those cases.
If you're concerned about a specific plant you added in the past, try searching for it to see whether it has been added to another entry as a synonym.
