Should free software depend on Mono or C#?

Here's a fantastic read on why free software should never depend on Mono or C# authored by one of the favourite authors of OSes Mr. Richard Stallman. Click here for the full story.

Debian's decision to include Mono in its principal way of installing GNOME, for the sake of Tomboy which is an application written in C#, leads the community in a risky direction. It is dangerous to depend on C#, so we need to discourage its use.
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We should systematically arrange to depend on the free C# implementations as little as possible. In other words, we should discourage people from writing programs in C#. Therefore, we should not include C# implementations in the default installation of GNU/Linux distributions or in their principal ways of installing GNOME, and we should distribute and recommend non-C# applications rather than comparable C# applications whenever possible.

Make your own conclusions on this but personally, i've never been a fan of C# myself....not now and to be quite frank possibly never.