another example of HTML5 conformance and advice divergence

FYI

Recent HTML WG decisions have resulted in title attribute use on an image
without an alt attribute no longer being conforming in W3C HTML5 but
continuing to be conforming in WHATWG HTML. The WHATWG HTML also continues
to advocate the use of the title attribute in cases that have a negative
impact on accessibility for a range of users, while the advice has been
removed from W3C HTML5

1.2 Is this HTML5?The W3C HTML specification omits a number of suggestions
> regarding using the title<http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-title-attribute>attribute, and makes using the
> title<http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-title-attribute>attribute for captions non-conforming in certain specific cases, because of
> a number of working group chair decisions from March 2012: first<http://lists.w3.org/Archives/Public/public-html/2012Mar/0555.html>,
> second <http://lists.w3.org/Archives/Public/public-html/2012Mar/0731.html>,
> third <http://lists.w3.org/Archives/Public/public-html/2012Mar/0785.html>.
>
>

source:
http://www.whatwg.org/specs/web-apps/current-work/multipage/introduction.html#is-this-html5?

regards
Stevef