I don't know, McGoH... This is not the same as an editorial; it is an exchange of views. A conversation taking place in public. Not an attempt at proselytisation or influence. Furthermore, the Guardian's project goes beyond simple editorial - it recommends that people take action and write those letters.

It's OK to say "I don't like that country's leader". It's OK to say "I wish they voted for someone else in that country". But it's not OK to urge the citizens of another country to vote in any particular way. A fine line, I grant you, but a line nevertheless.