When a person Hoards things but hasn’t reached the Hoarding level of the people on the TV show Hoarders
They have just a Mild Hoarding Problem, only save food for too long and doesn’t throw away newspapers or old clothes, they haven reached the house so full of crap they can’t live there anymore level.
A mild crush is when you have a crush, but it’s not as severe or serious as a full on crush.
You still like them, but you are ok with being friends or just strangers.
Another reason for a mild crush is that you know that you’ll probably never be able to be in a relationship with them so you lower the bar and don’t expect anything serious to happen between you and them.