TL;DR: How I improved the performance of case-insensitive XPath queries by 30–35%, reducing an 8× performance hit to only 4.5–5×. This was originally posted to the SimplePie NG blog. Parse-at-all-costs Most feeds are a mess. The old SimplePie “OG” took a parse-at-all-costs philosophy, and could handle many of the most broken feeds you could find — at a cost. While the early versions of SimplePie supported the letter of the RSS 2.0 specification, there were a surprising number of feeds which didn’t.

Pure, unadulterated incompetence in this week's episode of Clueless Recruiters! (Cue theme music!) Explanation There are few things that technical people are more annoyed by than technical recruiters. A very large segment of the technical recruiting industry has made a bad name for the rest of their industry by relentlessly spamming technical professionals after having not done their homework. These people hock job openings the same way that sleazy salesmen hock used cars. These recruiting companies need to radically change how they do business with the technical crowd, and the Clueless Recruiters series is an attempt to call out clueless technical recruiters who contact me for jobs that are clearly a terrible fit.