Does using pseudonyms such as "The Fighter" when writing in forums, or changing one's name when seeking online advice or a fatwa, count as lying?

A person is permitted to identify themselves with their real name or a pseudonym. This permissibility is confirmed if it is for security reasons or personal interests. There is no harm in using a pseudonym with characteristics not present in the person, as this is not considered lying. Lying is intentionally informing of something contrary to reality. For example, borrowing the name "The Warrior" is merely an identification of oneself and not an informing of people that one is actually a warrior.