I admit, I haven't found any concrete evidence that he is the same one who participated in Doujins.com and Doki Fansubs as a translator.
But since he is only called Ero in the comments on E/Ex and the number of translators is limited, I would say it is the same person.
But since he is only called Ero in the comments on E/Ex and the number of translators is limited, I would say it is the same person.