I don't think most people (with the possible exception of PG) were scolding you for taking advantage, rather just saying that it makes sense that el Al would take care of their real customers before you (and me, in January and Pesach time)
What defines a real customer is my point. YOUR beliefs are that someone who pays full price is a real customer whereas the 6000 people who got this deal are not. However, when I call up El Al there isn't an asterisk stating that I have a glitch ticket. Not only that but even these glitch tickets, once ticketed, put me in the same fare class as you and all the people who paid full price.
This is like telling someone who gets bumped and gets a voucher for a free ticket that they are second class to someone who paid out of pocket... Or the same as someone who pays 200 bucks for a ticket and someone else pays 900... Your rationale is so incredibly flawed. If you are a business, which it appears El Al is not, you treat ALL customers with respect because that is how you get repeat customers