Common denominator was/is we didn't win and surprise, surprise the Scarlets fans even moaned about the ref when they WERE lucky to win -against the Borders.
Now the refs aint perfect and we have been on the wrong end of their stick ourselves but IMHO Welsh teams and their fans should take a look at their tactics and how they play before they pick on the man in the middle.
Last nights first half was a typically Welsh performance, replete with off the ball shoulder charges, forwards falling over in rucks on the wrong side, wandering around offside as if on a feckin' day out to Swansea beach
and of course no game against Welsh opposition is complete without Ulster players suffering injury to varying degrees. Funny that one where it not so serious.
Seems the Welsh teams are happy to try and wind up Harrison and then complain when he stands up for himself and the Ulstermen. Seems strange that it is only Welsh teams where this happens, our where slug fests break out off the ball with unerring frequency.
Message to Welsh fans:
When your teams concentrate on rugby then we can discuss the refs with some degree of objectivity, in the meantime trying to exert your moral authority on the rugby pitch with borderline physical tactics only serves to increase the degree of contempt to which Welsh opposition are viewed by myself and I imagine a few other non welsh and Ulster fans.
BP , they now think rugby is a total war of attrition and no longer a skillfull game in West Engerland 
But just to say I think very few people at Ulster rugby see the flag as a contentious issue, as YM said it's a red and white thing - hence the reason the yellow Ulster flag looks wrong.