Please change the AbuseFilter configuration for eswikibooks to the following:

$wgAbuseFilterAnonBlockDuration = '31 hours';
$wgAbuseFilterBlockDuration = 'indefinite';

Discussion still ongoing at our Village Pump, although I don't expect much more participation due to the small size of the project. Change is trivial, though, and reflects the standard block settings for vandal accounts and IP addresses we practice.