By the way, if anyone else gets the "max_questions exceeded" error persistently from their ISP, the way I got around it was this:
1) set a Crawl-delay parameter in my robots.txt file (I used 30 secs), and
2) create a second mysql user with complete access to the same wiki database, then make this inelegant hack (php newbie here) to LocalSettings.php to switch randomly between users:
Replace: $wgDBuser = "wiki_user";
with:
$rand = mt_rand( 1, 2 ); if ( $rand == 1 ) { $wgDBuser = "wiki_user"; } else { $wgDBuser = "wiki_user2"; }
This spreads the 'questions' across 2 users to give you twice the capacity.
Both changes were necessary to avoid crashes; the wiki has stayed up for 3 days now.
Michelle