No, that is an odd question.
Pseudonyms are not equivalent to a "lie" or a "false witness" but rather they are a device for the commercial success of the books.
There are plenty of reasons for pseudonyms, none of them evil or sinful.
For example, if you write romance novels, you would not want your name to be "Gertrude Flappenbush" so you might change your pseudonym to "Nikki Lovelace" or something.
Or, if you are writing something that involves still living individuals (names changed to protect them) your name would cause the person to be revealed, so you would write under a pseudonym to protect the innocent.