What I assume the commenter meant is that Beeper was bought by Automattic, which also owns Wordpress and whose CEO is Matt Mullenweg. Recently Mullenweg has been on a vendetta against WPEngine from benefiting from Wordpress, and basically sabotaging Wordpress to spite WPEngine. This article details the beef.
That being said, I use Beeper (and Pocket Casts, also owned by Automattic) and enjoy them a bunch. I haven’t noticed any issues since April, and the whole Wordpress vs. WPEngine seems to not affect Beeper.
I will travel across the land Searching far and wide
They even specified their tenaciousness