Be civil. Don't say things you wouldn't say in a face-to-face conversation. Avoid gratuitous negativity.
And what's uncivil about them?
It passes the "gratuitous negativity" test to me. The same point could have been made without the condescension.
To defend their technology/language of choice, who they felt was undeservingly dismissed as obsolete?
>The same point could have been made without the condescension.
I think the "less competition" is a valid point. People that dismiss languages as "old" or not fashionable enough, often miss opportunities in niche areas -- case in point all the COBOL jobs.