PHP Error thrown on E_NOTICE

I'm writing this for more compatibility with the Bad Behavior Drupal module and associated Bad Behavior PHP Spam Filter. I've been speaking to the maintainers of the (non-Drupal) Bad-Behavior scripts, because I've been getting a lot of "errors" listed by Boost in the Page Cache Status Block. I've fixed a few in the Bad Behavior Drupal module which were causing some, but here is another I'm now getting listed in the Boost Page Cache Block on a great many of my nodes:

There are php errors or drupal messages on this page, preventing boost from caching. ERROR:

Array

[type] => 8
[message] => Undefined offset:  1
[file] => /sites/all/modules/badbehavior/bad-behavior/functions.inc.php
[line] => 47

And here is what the Bad Behavior people say about it:

It looks like you have error_reporting set to E_ALL and thus PHP notices are being reported. For whatever reason Boost seems to be catching them. You said before that you didn't have display_errors set, but perhaps Boost has set it for you? Worse, it seems the notices are being reported even when the utterly harmless ones are being suppressed with @. So I don't know. I would suggest you double check your PHP configuration again, and maybe get the Boost maintainer in on this.

I do have PHP error reporting to display off, but to log them. Does Boost reverse that somehow?

If we had more granular control over what level of PHP error was making Boost not cache nodes, we could control this kind of thing ourselves I would think. Any help would be appreciated. Please let me know if you have questions.