I didn't notice until I was browsing. Anyway, I think asking that's a fair question, and one that will net you quite a few different answers. Here's mine:
This is a trading card database. Not a sports collectible database. At some point, there has to be a line drawn as to what is documented here and what isn't. And Admin has put in guidelines to do just that. As far as why sticking to those guidelines matters so much to me, well...
How many times does someone say this is a wonderful resource, greatest card site on the internet, etc.? I know I will always say that this is the greatest trading card site out there, bar none. And as a result, I think that people are taking notice. New members are contributing and joining each day. We are (and I say "we" because this is a collective, sometimes dysfunctional, family) quickly becoming a go-to hobby resource. Go ahead and Google this set - 1990 Good Humor Big League Bats. The first result is the TCDB checklist for them! And that's wonderful.
However, I also believe that means we have a standard to uphold. We are gaining credibility in the trading card world, but that credibility can be lost. When guidelines are ignored, when attention isn't paid to the details, when things are let go and there are seventeen fingers in the pie all doing different things, then things get messy, credibility is lost, and this hobby resource turns into just another website.
Is this ice cream stick set going to make or break the Database? Absolutely not. But the largest avalanche starts with the smallest snowflake (you can insert your own analogy here). And I believe that if we want to keep this resource and site the best it can be, the guidelines should be adhered to as closely as possible. I will add that I didn't make a forum post to create trouble or call anyone out or anything like that. Before I submit any IRs, I figured I would see if anyone knows anything about these that I don't which would allow for inclusion here.
Oh, edit to add that yes, I think that leaving items like this would make others believe that these items are okay, and could lead to more getting listed, which then does turn into more work for members to remove them, but that's a fact of the matter anyway.
Anyway...*steps off soapbox*
I'll never quit collecting entirely, but I am downsizing. Check out my COMC store and help me thin out what I don't want so I can buy cards that I do want. See something you like? Send me a message on here, and we can knock the price down quite a bit. I'll even take a bit of a loss if it means getting you a card you really want.