Implemented, but only populated on demand to make both points of view happy :)

Changes have been made in Git (master):

commit ae725a1d0ae425ecaa5fa47e6f988132f2f7ff06
Author: Michael J Rubinsky <mrubinsk@horde.org>
Date:   Sun Jul 7 20:39:32 2013 -0400

     Request: 11712 Populate previously used tags, but only on demand.

  trean/edit.php                   |    5 +++
  trean/js/toptags.js              |   24 +++++++++++++++
  trean/lib/Ajax/Imple/TopTags.php |   58 
++++++++++++++++++++++++++++++++++++++
  trean/package.xml                |   16 +++++++---
  trean/templates/edit.html.php    |    7 +++-
  trean/themes/default/screen.css  |    5 +++
  6 files changed, 108 insertions(+), 7 deletions(-)

http://git.horde.org/horde-git/-/commit/ae725a1d0ae425ecaa5fa47e6f988132f2f7ff06

+1

I could imagine this is used a lot by people who don't use tags 
excessively, but only a short number of default tags for everything. 
Having this every-day list of tags quick at hand without having to 
start typing is a nice shortcut.

I'd vote for actually hiding this functionality by default 
(everywhere, not just trean), or removing it entirely, fwiw. I use the 
tag autocompleter a ton, but I don't really want additional space 
taken up by/info to process put in front of me, a set of additional 
tags that have been used recently.

Oh, when "editing", not "browsing" bookmarks. :)

I still need to implement that part in Trean.

Not sure how it's working for Jan, but I don't think the code to 
populate that section is even there yet...

Works fine here, though I think there is some certain threshold before 
those tags show up. Michael?

Hi,

when editing a bookmark, the "previously used tags:" list is/stays empty.
I have some bookmarks with tags, so it should show -something-.

Thomas