As the author, I can assure you they are what I claim them to be: Points in the source code that identify some issue in some browser.
> The first two are actually the same thing,
Whoops! I thought I had removed the first one. Thanks for the bug report. The second is true, we received bug reports when we used we had issues with "use strict" in Firefox. I removed the first one anyway.
> The third is just noting that a jQuery function doesn't work in some contexts.
Wrong, it's a note about IE reporting the wrong value.
> The fourth and fifth (which, like #1, are two lines from the same comment) are just documenting a try/catch block because something jQuery is doing might throw an exception.
Because a particular browser has abnormal behaviour.
> The seventh is just an attribute named "support".
I thought removed that. It matched "support:", so you're still wrong.
> So far it looks like this isn't actually a list of reasons you will need jQuery
Accept that it does with the exception of two things I thought I had removed.
You owe me an apology.