Im sure its not something you should be using every time you bust out your records, but when you shit gets caked on with dust/smudges etc. this works well. Ive tried, (mainly on shit IVe bought at garage sales and used record stores thats dirty as fuck) and know others have as well, with success. And if you are keeping you shit in plastic sleeves, it shouldnt be something that needs to be done that frequent, but I understand your hesitation.
There are definitely other cleaning options available. Such as washes, kits, and brushes, this is just a cost effective/cool way to clean, imo. The best care option is our own care when storing and handling.
Think you can try capturing the scuff in a photo? Because it could be just a natural part of the vinyl. Like a little color discoloration from the pressing, which could just be a natural aesthetic look that occurs and not from damage.