The ad-blocking landscape is in line for some standardization, starting with the blocklists' syntax.
PI-HOLE DROPS SUPPORT FOR ADBLOCK-STYLE BLOCKLISTS
But in a recent update, Pi-hole creators announced they were dropping support for "AdBlock-style blocklists," named so after AdBlock, the first ad-blocking browser extension.
The syntax and formatting of this extension's blocklist has spread and has become an informal standard across fellow browser-based ad-blocker extensions.
Pi-hole creators said they decided to drop this type of ad-blocking blocklist format because it was never meant for Pi-hole systems, and users employing these types of lists were creating "far too many false positives," blocking domains that were never meant to be blocked.
As a result of this recent change, Pi-hole developers said that users "may notice a reduction in the number of blocked domains" going forward, something that Pi-hole users won't be too happy to hear.