[eluser]TheFuzzy0ne[/eluser]
I like the idea.
If you can see sessions for bots, then the sessions library must be writing the session to the database, and I agree that it shouldn't be. I think the sessions library may need to be rewritten to take into account any clients that don't support cookies (such as bots).
I would have thought that the sessions library will clear old entries after the cookie is due to expire, but I could be wrong.
60,000 is a very long way from millions, and a database should be able to happily work with a few million rows anyway, especially if you're just querying a single word or number in a single column.