[thincom2000]

To argue with all those who say there are no queries in the postbits, there are actually a number of queries vBulletin can possibly make during each cycle. I have been investigating this extensively, following function call to function call.

In class_postbit.php, the function call to cache_permissions() - cache_permissions is defined in functions.php and can execute a query under certain conditions. Tested, and this is not our extra query.

In class_bbcode.php, queries can be made to the table bbcode and smilie if $vbulletin->bbcodecache or $vbulletin->smiliecache are empty. Tested, and this is not our extra query.

I will be adding to this over time as I investigate further.

EDIT: I found the cause of the queries.

A little product called: Username Management
Has a plugin included for: postbit_factory
Plugin is called: Add Username history to postbit(legacy)

I don't know why the coder used a separate query for this when only a $hook_query_fields addition was necessary.