Since super Mario 3D all-stars has no difference from the original other than the BLJ being removed and BLJs are banned on 70-star runs can I do 70 star runs on 3Dallstars and submit them for the 70-star category?
There is a specific category for all 3D All-Stars runs in the category extensions part of the leaderboard. You can submit runs there. This is because BLJ's are not the sole difference between them, things such as pole grabs and 3D Allstars also maps Mario's movement to digital buttons allowing for framewalking which while it is possible it is much much more difficult. So it would be unfair to most runners to have it on the same leaderboard as regular SM64. Although you can argue that no strats require framewalking in 70, I just thought it right to point it out as it is still a major difference.
It has many more disadvantages compared to the normal version, for example when you jump against a tree: in 3D allstars you turn around it once or twice and in the normal version you don't even turn a quarter around the tree.
If you wish to replace your twitch highlights with reuploads, please edit your already verified run rather than deleting the verified run and making a new submission. This makes it a lot easier for us to track which submissions are reuploads and should be less work on your part as well.
If you need