They're artifacts from a more naive time on the internet. Meta has announced that they're going away next year on Feb. 10.
Welcome to Tool Tip Tuesday for Adobe Premiere Pro on ProVideo Coalition. Every week, we will share a new tip to save time ...
So are external comment buttons, according to Meta. They’ll be discontinued on  February 10th, 2026, and starting on that date, they’ll render instead as a 0 x 0 pixel to prevent causing errors. [Link ...