Sieges are boring due to lack of people, communication and understanding. Most people barely (If at all) can understand english. There are English, Russians, some French and some Germans who cannot communicate with each other due to language barrier.
There is also basic lack of players. At best times on Elyos side we barely had 150 people in league. Its nothing compared to retail 300-500 people from each side nyerking it out for an hour non stop.
As for me and people that I play with - we're bored of grinding PvP. We just want to PvE ***. I've grinded Cera medals for Rank 1 set in 4.0, for Star-2 set in 4.5 and then for Myth Rank 1 set in 4.....8 was it? When they added mythical PvP gear, mythical General Extendables etc. I grinded thousands of cera medals and tens of millions of AP during Kata/Kaldor sieges. I'm simply not interested in it anymore.