They're not cowards, they just value their accounts more. Trying to defend this will get them banned.
"I'm not a coward, I'm just afraid of defending what I believe in because I'm afraid I'll get banned from an internet forum."
A meaningful distinction if I ever saw one. /s
Sorry, I should've been more specific – now they care about invoking science
The apparent contradiction evaporates once you notice they're not invoking science, they're invoking """"science"""". This is a frequent friend of the right, invoked often in global warning debates as well.