I am not sure I see what your point is. Are you just asking for someone to document this line for you? Anything can be well documented provided that the person doing the coding/documenting understands what they have done and how to articulate that in English. For example are you telling us that this is a line of code in one of your apps, and you don't know what it is doing, or don't know how to articulate what this line is doing in such a way to make it understandable by others?

I have seen some strange comments in 'legacy' apps/scripts written by people who long since left the respective companies. Comments along the lines of:

/* Found this on google */ or 'I have no idea how this works!

So cut and paste coding often results in poor documentation were the guilty party does not/can not understand and document what a piece of code does.

Update: Does this relate your request for someone to comment code they just gave you, for the benifit of 'the common man' as you say?

Martin