My YouTube suggestions list is filled with videos I just watched in the last few weeks or months. Along with the some new videos, but remarkably many already wa

My YouTube suggestions list is filled with videos I just watched in the last few weeks or months. Along with the some new videos, but remarkably many already watched ones. They are not labeled as such. I suspect I blocked some cookie or changed some setting they didn't want me to change, and this behavior is deliberately calculated to be punitive. It's not very user friendly. Or, the YouTube developers are just not very smart. Either way, it doesn't look good for them. This would be so easy to fix. If they don't know how, they are welcome to reach out to me and I can give them some ideas. Yes it did occur to me that some users might like this. But they way they have it set up is very confusing and suboptimal for my needs as a user. I will admit though it may be serving some business need that they have, like saving their bandwidth by re-serving me old videos from my cache.