contrast easy Twitter/PuSH/#OAuth APIs + examples with huge/complex #OpenID PHP libraries (cc: @chrismessina) - over a dozen classes with dozens of methods total in http://openidenabled.com/php-openid/. that's the 1.x libs (nevermind 2.x) and samples just for consuming OpenIDs. I have a lot more sympathy now for those who give up on or deprioritize OpenID support. The barrier to entry for OpenID support is far too high for independent developers.