You’ve definitely created a big problem without realising it. Ratings always refer to the print profile rather than the actual 3D model. What did you do? You spammed the print profile.
I don’t mean to be harsh, but let’s be honest. Even if you receive a rating, it only applies to one print profile, which is extremely disadvantageous as all your print profiles would need to achieve at least four stars.
I don’t remember the exact numbers, but I think you need at least approximately 10 ratings of 4 stars or more. Since you have lots of print profiles, that would be 60 ratings of 4 stars or more.
So you artificially set the bar from 10 to 60.
…and I also find it strange that you’re spamming the comments section with messages to yourself. Just let the users use that section - you’re taking away their visibility. So that’s exactly what you want: interaction.
As I said, none of these are the root cause, but every little thing is perceived as an obstacle or disruption that can contribute to the problem. That said, as I mentioned, I don’t take it personally.
It all seems a little over-the-top - tone it down a bit and come across as more natural. 
By the way, upload your text in English. Otherwise, it just confuses the AI or search engines and makes it harder for people to find you. The AI isn’t exactly an expert in German.
And your color scheme doesn’t work at all when MakerWorld is in dark mode - like I use it, for example - the text just disappears.
Source: Baseboard corner WITHOUT sawing - Old Building Edition - Free 3D Print Model - MakerWorld
And why is that actually listed twice…
Like I said, this might sound harsh, but it’s just to help you. It’s just my first impression, and it’s confusing. If you tweak it, it’ll work out.
