I'm receiving a lot of emails from our phabricator instance (I narrowed them down to my preferences, so only something that requires my attention is sent).
My focus here is on Maniphest, but I guess any object could be tracked. Currently, in Maniphest when somebody comments you send:
A proposal is to send link to the change so you get focused to the change instead of just the task itself. Makes it easier to track the task changes when reacting from emails.
So, in TASK DETAIL alongside the regular link to task, you send the link to the comment, task change (subscribers changed, tags changed, moving to columns in workboard), whatnot:
LINK TO CHANGE
I know that the root problem here is not that big and the request is only a really minor usability and UX tweak.
I currently either respond from email (we configured Mailgun inbound emails) when on mobile and when using desktop/laptop I go the task on phab and press "END" keyboard shortcut to go to the bottom of the page.