Hmmm...by the multitude of definitions being offered here, I am guilty of being a hoarder, I guess.
I keep a few beers on hand, a few cuban cigars, and I buy oil on sale, so I can save money on maintenance, and I have a bit in the garage, I've given some of it (the beer, cigars, or the oil) away to folks who needed it or just shared it with friends.
I have some savings to cover unexpected expenses. I invest part of my income so that, in retirement, I have enough to live on and provide for my needs without depending on social security or my family. I give some of that away too...
Saving for a rainy day, buying on sale, investing for the future...I thought I was being a fiscally responsible member of society...and now, I find out that I am a guilty, hated hoarder...
All I can really say in my defense is, "join me"! let's take this thread back to sanity: It's nice to have a few cold ones, a few Qts of M1, or a few $$ when you need, or even just want, them...keeps the level of worry down...try it...you might like it!