User blog comment:B214/Question and Answers 6/@comment-3285616-20161121005601/@comment-9595671-20161122202428

I think it is since a ton of girls are in love with Saito, and while Season 4 seems to cut off the harem route, I think it was made when the author died and people didn't know he made sure his family could get the last two volumes out. I recall seeing images of Tabitha's sister finally showing up recently, so I think that's made progress.

I can agree with you on To Love Ru too as the harem part didn't begin until Darkness started, before that it was more of a love triangle. I guess it's hard to be sure unless you check the categories for the series and the release date of their animated adaptions.