Is it a sin to use pseudonyms on social media? For instance, on my actual social media account I (a man, fyi) use my birth name rather than my current legal name and a lot of people know me by that the former rather than the latter. I was wondering if this is this a sin that would fall under bearing false witness that I should confess? I mean it's technically my real, birth name and the one which I would like to change back to but, just not my current legal name that was changed when I was a child.