I'm okay if "every" just means "most"; for example Spolsky's old "what every developers needs to know about Unicode" (which is the origin of this, AFAIK) is fin

I'm okay if "every" just means "most"; for example Spolsky's old "what every developers needs to know about Unicode" (which is the origin of this, AFAIK) is fine because most (but not all) developers will need to deal with text sooner or later. But in this case it doesn't even mean that: all of this applies to a substantial minority of programmers, but definitely a minority.