Thread:User talk:Armondikov/Abbreviations of languages

Now there are follow abbreviations for the languages (it is indicated the number of letters in parentheses; see template:eng and so on): eng (3), fr (2), esp (3), ru (2). I think, that it is necessity to go to the same standard, e.g. to take biliteral abbreviations: en, fr, es, ru (as it was taken on Wikipedia). What do you think about this?