Re: [PATCH v2 3/3] docs: mention when increasing http.postBuffer is valuable

> Users in a wide variety of situations find themselves with HTTP push
> problems.  Oftentimes these issues are due to antivirus software,
> filtering proxies, or other man-in-the-middle situations; other times,
> they are due to simple unreliability of the network.
> 
> However, a common solution to HTTP push problems found online is to
> increase http.postBuffer.  This works for none of the aforementioned
> situations and is only useful in a small, highly restricted number of
> cases: essentially, when the connection does not properly support
> HTTP/1.1.
> 
> Document when raising this value is appropriate and what it actually
> does, and discourage people from using it as a general solution for push
> problems, since it is not effective there.