(following on from another thread) I've been looking at the 'more info' ofsome of the older items in my history, and some seem completely unfamiliar: authors I do not recognise, stories with descriptions and tags that trigger squicks. Is it possible that such stories are a case of ID reuse: the story I actually read has been deleted, the id assigned to a story added shortly after - so the reference in my history is a lie? If so, is there any way of getting all such mismatches removed from people's histories, please? Also, is a vote I gave to the old story mow assigned to the new one? If so, I think that also needs correcting!
(Primary key reuse is liable to cause a whole slew of problems, unless every cross reference between tables is properly marked as a foreign key - and the dbms enforces referential integrity. Cascaded deletes can help with maintenance, if supported by the dbms.)