Yup, that’s the point I was making as well

So, a few things:

1. No way to prove you’re a dude.
2. Post is still not a lie, as your statement followed the post. You can’t say that someone in the year 1900 was a liar if they said “no man has walked on the moon”.
3. Technically you wrote it, not said it. Therefore your comment is a LIE