I've been cracking down on post information a lot in the past couple months. I've also been more insistent on people providing more technical info from all the versions to avoid bad information as much as possible but at the scale some of the uploaders post at, it's not always easy for them to accomplish flawlessly and for us to check it all.
There is an absolute ton of mistakes I'm sure(breaks my heart when an uploader complains he has been doing something something the wrong way for years or that everyone does it that way when I tell them they're messing up) but the biggest offender should have fixed that specific issue(SD as 720p) for good(fingers crossed cause it was a lot of work to make that happen) and if you see any bad information in future posts(or from past posts that still matter), do use the report button to let us know since it's impossible for us to check it all and even less so to download everything to check it's right.
If it gets reported, we will fix it to the best of our abilities.
It is possible for other people to share even if the same resolution has already been posted, but there needs to be a difference that justifies it. A lot of uploaders were making garbage encodes just to justify being able to post so we had to put some restrictions on what they could post and it's all explained in a fairly detailed manner in this post:
https://www.akiba-online.com/thread...deo-that-already-exists-on-the-forum.2140184/
For example, it's perfectly fine to upload a high quality 720p if the first poster only uploaded a small sized low quality 720p file and any non/less-watermarked version can be posted any time if there's only watermarked versions available.
We want to put as little restrictions as possible on uploaders so having a minimum resolution is pretty much out of the question, especially since there are still DVD only releases getting new posts but we still need some to keep everyone happy as much as possible.