Of course there is such a thing, assuming someone wants to work on it (even though most statistics sites - including Project-GC - don't currently have displays for that). But of course it's a worthwhile goal to try to complete your Jasmer using just traditionals, or log a webcam from each month when webcams have been allowed to be published.
I didn't say that this was easier to accomplish, I said that I wanted to make it easier to work on this target. I've made a checker to be able to work on this myself, in the meantime.
Some of the other top lists are different since they are, from a database programming perspective, more suitable for making top lists for. Others, like Top D/T loopers have the same problem as Top Placed Months loopers would have, and that's why that particular top list is not updating "live" but only a few times per day. The reason we have one of those tables and not the other is that there are many many more people who are able to complete the D/T matrix than all the placed months, and way more people working on doing it many times.
And it's not quite true that the required data is in everyone's public profile. We don't pre-process the public profile for all existing users. We pre-process the public profile for active users of Project-GC, but that is far from all cachers in the world. If you look at the profile for some other users, we will render that on demand. That works for a single profile, but for all the missing thousands and thousands of users it would take way too long time.