It's all about organization and cleanliness I think. Hoarders are neither. A hoarders idea of organization is "that pile over there, if you can get to it, behind that stack of trash". I am sure you aren't keeping broken items and trash piled 3 ft from your ceiling and have tiny paths all over your house...that's hoarding.
Now...Justa might be like me with a terrible case of OCD...or as my husband says..."that's not clean its sterile and you are an Organazi." LOL.
PS: my husband has actually threatened his soldiers for years with bringing me to do inspections. I have that sort of laser vision that can see a speck of dust from 50 ft. Which is exactly why I should probably not do projects like interlocking flooring. I am staining every single tiny crack.....he likes to mess with me and off kilter pictures or move things. The opposite of you, I won't keep anything that is broken or nicked, or torn or can't be properly meaning...it looks like it never broke to begin with...fixed. If it weren't for my husband we would have no memorabilia from nearing 20 years of marriage, I keep nothing except essentials. I think the above post is correct, its two sides of the same neurotic coin.
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