(2) This technology stack sucks.
(3) That your technology stack sucks does not mean you suck.
(4) Maslow's Four Stages of Competence starts with Unconscious Incompetence. You don't even know you are unskilled. (http://en.wikipedia.org/wiki/Four_stages_of_competence)
(5) This isn't a popularity contest. (http://www.ribbonfarm.com/2009/10/07/the-gervais-principle-o...) Being cool and being in the in-crowd has nothing to do with your technology stack. That goes for nerds too (http://www.paulgraham.com/nerds.html)
(6) The tone of this article is defensive. The issues relates to identity, not technology.
(7) Relax, people.