Afaik you can’t rush past bosses as you have to kill them to progress in the main quest (from the top of my head, apart from side quest bosses such as Archon Barthollem, only Krieg can be skipped entirely, and you can chose to ignore Zaria when she attacks you).
Quests give the most XP, imho most sidequests are worth the effort especially when using XP pots. So if anything, I’d rush past the mobs and ONLY kill bosses and fulfill quests.
But maybe you were talking about heroes? Well I don’t rush past heroes either. It’s not right to let them live 
Also, not focusing on gear at all doesn’t sound too efficient to me, as you might be under-equipped when facing bosses like Cronley. Unless you know exactly what you’re doing. Which I am not apparently :rolleyes:
I’d like to add, if you’re a relatively new player bounties are a good way to gain some extra XP and ofc reputation which is necessary for certain faction quests. But in order to do this efficiently, you have to know which bounties are worth the effort and which aren’t.
Now with warrants and writs/mandates applied to new characters I rarely do bounties anymore, with the exception of DC bounties that target Cronley’s Gang. DC quartermaster has some nice stuff and Cronley infamy is quite hard to get so any opportunity to farm infamy should be taken.
That’s what I thought for the first 800 hrs or so. I had much fun starting the game over and over with all kinds of different characters. Then one day I got my first build to 100 and it opened my mind. Seeing the fruit of your labor is very rewarding. You should try it some time! Unlike in other games (coughD3cough) hitting max level is not the end of the line, there is so much looting and crafting and fine-tuning it’s worth another 800 hrs of fun at least.
What is OCD? I do that too just for fun, and for that same reason I always destroy the sofas in Karroz’ chambers and Scorv Egdenor’s office :rolleyes:
Scorv never blinks an eye about that, he’s probably just glad that I didn’t kill him and his posse right away 
Yes you can, in fact that is how I get 5 or 6 devotion points before even getting to the first shrine in the campaign.
- Create a fresh char and open a crucible game
- Grab any items from your shared stash that might help leveling (Lokarr’s set, Gazerman, XP pots, level 1 components)
- Optional: Start campaign and grab either Olman’s Axe, Francis’ Gun or any other rares that drop in Lower Crossing. Here’s a list available freebies: Lower Crossing Rares
- Start the crucible, survive the first round (10 waves) and cash in, do not continue with the next round
- Cashing in will give you 3 tribute tokens which you can spend on 1 devotion point (talk to the NPC with green arrow above their head)
- Repeat steps 4 and 5 until a devotion point costs 5 tribute. Now you should have gained quite a few levels and have some decent gear from crucible rewards
- Start main campaign, rush to the shrines in Act 1 and kill Warden Krieg with about 12 devotion points which should give you at least two finished constellations