As of today, HTTPSB parses and enforces over 75% of ABP's request-blocking filters, or nearly 90% if not counting whitelist filters. Do whatever can be done to improve ABP-filters coverage.

Also, I cleared my misunderstanding of ABP's whitelist filters: I had assumed these were strictly for so-called "acceptable ads", while their only purpose [in EasyList, EasyPrivacy, etc.] is to un-break specific pages which are broken by ABP-blocking filters (The "acceptable ads" filters are in another standalone list, which is not and will never be supported by HTTPSB - because I believe the only acceptable ads are one the ones the user himself/herself decides to allow, not what a 3rd-party decides based on that 3rd-party's own definition).