I wish they’d spend more time on sub-plots, character development, etc. If HBO removes all the sex scenes, they could probably squeeze in an extra episode of actual content per season (I’m being slightly sarcastic).
Game of Boners - Aiden Gillen returns to his brothel to make use of his Littlefinger namesake.
The Sopranals: Gandolfini enters Bada Bing! through the back door
etc. etc.
Which is to say, HBO actually seem to be quite tasteful with this while also being gratuitous.