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Now, now. Wassercrats is notorious for saying something perfectly sensible in the shortest possible terms. Unfortunately, in English, this means ambiguity. Let's add just a little for tolerances:
I wouldn't agonize over studying and mastering all those processes and methodologies. While they might be useful, they also might not, and they aren't a pre-requisite to writing good code.
I think that's a little closer to his original intent. People can get paralysis from worrying too much about coding in the nebulous Right Way just as easily as they get crap code from Slamming Out Code Without Thinking(R)*.
On the other hand, to quote D.A.R.Y.L., "All knowledge is learning and therefore, good." It's probably worth perusing some of those methodologies, just to see if someone happened to strike gold. Just don't count on it. :-)
* - SOCWT is (not) a registered Service Mark of Micro$uck.
In reply to Re^3: Software design -- The confussion of buzzwords