Speaking as someone who only just got carried from 1-70 and got all spells in the last month? I absolutely DO NOT want BLU as a normal job, I don't know about other Datacenters, but on Primal I had a wonderful time interacting with other BLUs in PF, I never had to wait long for some hard core BLUs and others learning spells for the first time to join in and assist, help suggest spells and builds, offer advice for Carnival Stages when I didn't just wanna cheese with youtube, it felt like an entire community in of itself and I still actively join in on others getting their own spells just because I love that experience. None of that would be the case if BLU was just another caster, I already raid, savages, Ultimates, the BLU community I've seen for spells and BLU raiding is wonderful and a breathe of fresh air by comparison. I feel like people just see "okay I did my spells and carnival" and just forget BLU is an opportunity for a lot of fun hijinks and experiences, you don't need a title or set challenge to make something worthwhile out of it.