Watch for this behavior and you will see it often.
If a Lemmy user can call out the age of an account he or she will use that as a way to dismiss and degrade the post that he or she does not agree with.
Y’all would enjoy Lemmy a lot more if you just focused on the post and stopped feeling compelled to rummage through someone’s post history.
Sure, if that person has extreme political views, is a Nazi, or is astroturfing then maybe you have cause but clicking every single profile to find dirt to make an argument showcases your poor debate skills.

New account making a suspicious post is not a definite proof that they’re a troll but I can win money all day betting that they are.