And we also have "Threshold" which is a whole long contradiction. Paris breaks the threshold for warp speed, almost dies, turns into a lizard, abducts Janeway who is also turned into a lizard and they have lizard “children” and no one talks about it or jokes about it later! It's totally forgotten in later episodes.
The crew is terrified to ever mention it again. Remember how Hogan was eaten? He had been reported by Janeway's spies because he made a little jest on that planet about eating lizard eggs to survive. Something about "poached progeny".
Neelix did her bidding and sent him down the tunnel.