Well I suppose it's time for me to throw my hat into the ring, and post my comment on this thread. I think think the biggest argument here in this thread is due to a perception problem. To which point of view are we looking at the subject matter from? The view point of the professional worker who must constantly sell, and resell him/her self to clients to sustain a suitable way of living, or the casual enthusiast who only wants to amaze his/her friends and family or occasionally be the life of the party?
What Anna is suggesting, though stated in a very authoritative and almost combative way, is from my opinion aimed at the professional worker. To that extent yes, she's correct. If you want to build on your profession, and make sure you keep business in your pipeline then you had better be memorable. Anything other than that is just a failed opportunity. Business isn't polite, it's not nice, and seldom is it fair. It's sales. Your product is yourself, and believe you me, it is a dog eat dog world out there.
However, if you're just a kid who's hobby it happens to be magic, and you're more interested in buying the next cool custom deck, or learning the Buck twins newest knuckle busting move then 90% of the intentions behind Anna's post is well beyond you. You don't need to care about being remembered... you just need to perform, and do so well. You're income or lively-hood won't be impacted severely if they don't remember your name the next day.