Nothing new tbf with our support, I have seen blue on blue in the kippax in the 90s, but it has become a trend at aways the recent years, seen it at wembley, burnley, Barca to name a few.
Wolves this year got to our seats (were 5 of us) and 3 young uns were in them, let them stay as we thought they were with the people to the right of us and tbf scrunching up to get stand with your mates has always happened at aways.
Became apparent they were charlied up and being a pain (trying to shuffle further along for more space, bouncing about flailing arms), so tapped nearest one on the shoulder half way through 1st half and said "half time piss off to your proper seat too crowded here" lad looked and was just about to say something when bloke on the other side said " you heard him son heres too crowded". They did just that, now they weren't being twats or kicking off, but there was clearly no room and their seat were 4 rows up and empty so it perplexed me what was the point.
When we have bunched up as I admit I have done mainly at everton where its a free for all anyway and been asked to move, I just move.