Been over this before, elements of the "we're season ticket holders and can shout unwarranted abuse if we like" types. Incessant abuse towards the manager, players and anyone that took their fancy.  I prefer the away support, they tend to focus on the opposition. 

I sat in the West in our first season at the new ground and didn’t like it Moved to Main Stand season two and I love it Not sure I’ve ever noticed the unpleasantness apart from a couple of moments with away fans in hospitality  What did you experience that was so bad it stopped you going?  

This.  Without going into detail the main stand atmosphere is very unpleasant.  The main reason I stopped attending the new ground.