Use AJAX for Just-in-Time loading of features

[محروم.كوم]

I'd like to suggest to use more AJAX for some features:

Quick Navigation
While this is a useful (and often liked) feature it cann add quite some overhead (both in processing time an HTML code being transfered) - but how often is it really being used?
I don't know for sure, but at least I hardly ever use it.
And I am pretty sure that there are many users of our forums that don't even know this feature exists.
So I suggest to use AJAX here:
Include just the default entries (Site Areas) in the initial page load and load all the forum entries when it is really being clicked.

This way it would be possible to have the feature enabled without having to generate (and include) all the HTML on every page (that uses the Quik Navigation dropdown).
If this is going to be implemented I'd like it to be optional to use AJAX, ideally there sould be an ACP setting like

• Disabled
• Enabled using AJAX for Members and Guests
• Enabled using AJAX for Members
• Enabled

Quick Reply
Threads tend to be viewed many more times than they get replies, yet the quick reply edittor with all its HTML, JavaScript, images, etc. is being included on every page for members.
I'd like to see an option to load the editor via AJAX upon request, this could save quite some overhead when just viewing threads. __DEFINE_LIKE_SHARE__