("Avpixlat" means "de-pixelate," as in un-censoring an image that's been digitally obscured.) Initially, Fredriksson wanted to study how it functioned as a source of nathat. Avpixlat, and especially its unruly comments section, has become notorious as a launching pad for rampaging online mobs.
But the goal was no longer a general survey of nathat. He wanted to answer an even more fundamental question: who are the real people behind Avpixlat's hateful comments?
The tweet was controversial even within Research Group, and Fredriksson later tried to clarify that the team would be mining the database for nathat. But many Flashback users probably weren't mollified.