[kijin]

I don't think ICANN should retire a domain namespace just because a political entity that it used to represent no longer exists. Cool URIs don't change [1].

[1] https://www.w3.org/Provider/Style/URI.html

[tyingq]

I suppose it avoids awkward politics. It's not clear to me, at least, which country would get to control the former Czechoslovakia TLD.