I think the merch is just a side gig. My guess is that Quidama is actually the person below. Whenever I would tangle with Quidama on Twitter, Eileen OS was always backing her up and/or liking her tweets within minutes.

Note Eileen's profession: " Investment Professional & Cancer Patient Advocate". And check out how many Twitter followers they have in common, courtesy of my new friend https://tweetbeaver.com/index.php

Quidama/Eileen OS are #ShortMafia. IMO.