This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
Previously due to #b2dc65f9534ea date on the quoted_posts table could not
be trusted.
This changes it so we use the date on the actual post as the grant date.
Note: there is an edge case where you create a post and only add a quote
a week later. In this case the badge will not be awarded at the correct
time (it will display it was granted a week ago).
That said this is far more rare than the current situation.
