Ref the Utapao Tw1tter; yep defo him for sure - tweeting past posts about Atmosphere directly as their own, as well as re-tweeting. What's worse is making out that it is the official account for the airport (reference to "we" in the account text). For what it's worth, email sent to Utapao Airport to notify; just hope their English is better than my Thai!
The Stansted account is also him; no doubt that there is a clear intimation to be more official than they are; unfortunately I can't see any clear evidence that they are expressly making out to be an official STN account.
Ref the Atmos support account - for a
PR team, those girls REALLY need to work on their social media presence...they do not exist anywhere else on the entire Internet! Perhaps I'm being unfair; after all I'm sure Atmosphere generates enough interest to keep them all busy with just the one client