Following today’s postings I’d  comment as follows:  
 1.    The case for inclusion, I believe is summarised in this posting:  “There are two official languages in the UK. One (de facto) is English. The other (de jure) is Welsh. Both official languages should be used to name the UK at the head of the infobox Daicaregos (talk) .  concur Snowded TALK ” 
 No sources have been cited for this assertion. 
 2.    In response I have provided 2 sources that clearly state that Welsh is not an official language in the UK. The UK Passport Agency states (in the document detailing their commitments under the Welsh Language Act) that “Welsh is not recognised as an official language”. The BBC says that the Welsh Language Measure 2010 (not yet in force) “makes Welsh an official language in Wales”. 
 3.    Snowded’s  response is: “I don't agree with your interpretation … Not that its necessarily relevant anyway. If have no unity of interpretation of the same source material, the compromise listed languages without making any special.” (sic) Again, no counter-sources are cited. He keeps repeating in a rather pained way that this has all been discussed before. Yet he’s never come up with a source. No reasonable person could construe the sources I've cited other than to say that welsh is not an official language.  
 4.    The case seems now to have moved on so that the ‘consensus’ established by 5 or 6 editors who happened to  be posting on 14 December overrides all views before and after, including about a dozen editors who want English only, and it doesn't matter whether that so-called consensus was built on a false prospectus or not. In fact, no coherent reason for their inclusion now appears to be advanced.