venting and flaming here might make you feel better in the short term but it won't fix anything in the longrun. it also stands to reason that a store will go under if the majority of its customers are unhappy enough to never go back. soooo each of the surviving stores must be doing something right in addition to any mistakes made along the way.
Joann's has a website. they provide corporate and customer service contact information.
use the contact information. let them know what you like about shopping there and what you don't like about shopping there. be specific and constructive when providing information they can use to sustain what works and fix what doesn't. make sure to send two copies of your comments: (1) to the managers of the store you shopped in and (2) to corporate headquarters.
if there's a problem, be part of the solution.