Sadly, I hit the 5,000 person mark on my Watch List and have been forced to Orphan Profiles recently. I have only done this due to the limits proscribed by WikiTree and I still have a lot of my actual ancestors to add. I wish my Watch List could go on forever as I hate leaving Profiles alone.
So, please go to my Profile Page and check my Contributions. Where the contribution is labeled (Reason for Orphaning Profile), that profile is in need of some love and a Big Heart.