Display quota usage in search.php just like in list-virtual.php:
e.g.: Quota (MB): 15/90, not only 90
This is already implemented in SVN trunk and will be part of the next major release - I have merged search and list-virtual and just use a different WHERE clause for search mode.
However we won't backport it to 2.3.x.
Nevertheless: thanks for submitting your proposal!