>>/78590/
Well, your memory is wrong. Marky infamously became known Christmas 2013 after posting on /b/ and was posting on r9k in 2015 as seen in  >>/78591/. Ciara first started posting in the second half of 2015, on masterchan, 8chan, and 4chan. And Agatha first attracted attention on 4chan in late 2016.