When stays do not post, has anyone noticed a pattern?

For example, are there any specific hotels that are more likely to not post and require manual processing for a stay?

Also, upthread, I read that if I book a hotel in my name but use my partner's credit card, I am technically not allowed to get any points. Is this still the case? Will this make it more difficult to get points if they do not post? The folio is under my name.

Thank you.