I'm not a mod author, but as a "modoholic" it really doesn't matter to me if an author requests an endorsement if the user likes the mod. It seems to me more of a crime if the user likes it and doesn't endorse. (How hard is it to say thanks really?) What does it matter really? "Hotfiles" I guess. But if the mods really good we will find you. I see no problem with an author saying basically "Hey if you like my mod don't forget to say thanks"