Q:
Siege Despawning - Official Clarification?
Actually both are true,
Siege does need to be touch every 30min and lighting from the quagans do indeed destroy seige and alters of keeps. It is why quagans have become key in many areas of WvWvW.
Haven’t seen limits, but there are issues of putting siege to close togather and destroying/blocking and more. so best to give them enough room. Hope this all helps, not offical with the devs, but meh , kind of a known thing by avid WvWvW players.
http://www.dragonhorn.net
As above.
There is also a cap on how much siege you can place in a given area, its relatively high though (probably 10+). The game will just prevent you from placing blueprints after that. Seen it a handful of times at towers/supply camps with large amounts of siege equipment set up.
also L80 Ele/Necro/Mesmer
IoJ
http://wiki.guildwars2.com/wiki/Siege_weapon
eat your heart out