Mathanxiety - it is not difficult to tell the difference between Irish travellers and Roma gypsies - you know that. For all I disagree with you, you clearly do know what you're talking about.
PerryCombover - If you had truly had so much personal experience you could tell the difference between Roma and Travellers. Yes, they may all call themselves gypsy at times, but so what? The Romany which you mention above, are another group again. Your ignorance is astounding.
People who have lived alongside travellers can recognise them, even though their physical appearance is no different from the rest of the population. They are obvious because of their mannerisms, their accent, their style. But you'd have to have had experience of them to see it.
If you really had " loads of experience of the Traveller community in Ireland" you'd know this. There are plenty of Roma gypsies there too. Your reading of websites does not make you an expert, as has been pointed out, it's just let you make a tit of yourself.
Why are you fighting the corner of a group of people you know nothing about? If you care about them, why not take the time to learn about them?