Mischief
And here I go yet again :D
When getting a new milestone notification, it'd be awesome if the notification included a link to the milestones (view-all) section so we can check it out without the extra step of opening our profile. At least on mobile, that takes longer than clicking a link in the notification itself would.
For example:
"Congratulations, you have earned a
badge
for reaching the Foal Me Once Milestone. Lucky you! You also received 1 WT."
The "badge" part could be clickable :3