[CamonZ]

> top developer" != "open source developer".

Very true, the thing is, companies go for developers with tons of OSS code and conferences both as speakers and attendees for two reasons:

First is the fact that you become a known quantity, OSS code is code that you have produced and that any prospective employer can look at and see its "quality". It also solidifies you as more of a domain expert which in turn allows you to get better wages.

Second, having employees with OSS contributions and speaking at conferences is good for the bottom line of employers, they can "gloat" more easily on how they have the "top talent" and are thought leaders of industry. This in turn allows them to charge their clients more and lets the find prospects easier.

It's all about perception and influence.

*Ninja Edited for grammar.