This post is a spin-off of "New round of UI updates... apparently".
Recently we got new, differently styled tooltips, for all buttons displayed to the left of questions/answers (upvote, downvote, add to favorites, etc). It's the same tooltip style that was used for the follow button.
I propose following changes:
Use consistent visual style for the tooltips.
Currently edit, close, and other buttons displayed below posts use native tooltips, whereas follow and all buttons to the left of the questions/answers use the new custom tooltips, and the cite button (on sites where it appears) has no tooltip.
I suggest using a same style for all those tooltips.
Use consistent capitalization and punctuation.
Messages in all the new tooltips start with a capital letter, and have a trailing period, except for Accept answer and follow, which don't have a trailing
.. Most of the old tooltips, on the other hand, are fully lowercase, and don't have a trailing
., except for add a comment.
I suggest tweaking the messages to make them more consistent.
Also see: Please add a delay to the hover tooltips