Why are we grepping for 'returntoquery=article_action%3Dwatch' instead of
'action=watch' here?
I was trying to not overcount. On higher-JS devices, it seems to be the
simplest way to capture the following:
1. Not being logged in while reading an article (e.g.,
http://en.m.wikipedia.org/wiki/2008_Seattle_Mariners_season)
2. Tapping on the Add to Watchlist star and being toasted to Log in.
3. The browser POSTing to login and be returned to the article with the
article being auto-starred (
https://en.m.wikipedia.org/w/index.php?title=Special:UserLogin&action=s…
If you're suggesting that action=watch is common even in higher-JS
execution contexts, that may explain why so many apparently higher-JS UAs
were also hitting action=watch bearing URLs (as opposed to sandboxed
WebViews or something like that, although those certainly constitute some
portion of such hits).
-Adam