Hmm, even non-glitches such as in-game perks and weapons might be used to break the game. It all comes down to how extensively you rely on a glitch and how far are you ready to push it. Myself I don't like glitches in builds. I can acknowledge the creative uses of them and they do indeed provide very unique gameplay opportunities. However, I play with Unofficial Patch which fixes 99% of these glitches (the only one not fixed is the werewolf gauntlets glitch, I think) and I won't be able to play those builds. It all comes down to balancing your game. For example, NoSnakes Master Monk can be pushed so much that you'll kill enemies in one hit. Some people might prefer that, and some people might just raise the damage a little to match, say, with a steel sword.
I'm pretty anti-glitch myself. If it's something simple like a piece of armor being classified as "Light Armor" but having it also qualify for "Heavy Armor" perks, or a piece of armor that doesn't interfere with the "Mage Armor" perk, that's ok to me. I don't have to do anything weird. I'm just equipping the armor the way it is in the game. If they ever patch it, I just use another piece of equipment.
However, duplicating items, equipping multiple copies of the same item, abusing Alchemy to super-charge stone effects, etc. are usually going too far for me. They go against the "spirit" of the game to me. Even Mason's Sentinel builds leave a bad taste in my mouth. The only one I liked was the Bronze Sentinel before he updated it when he was just using a standard, unaltered Atronach Stone.
There's only been one build that I liked that used these types of glitches. That was No snakes aLive's Master Monk, and that was only because he was using those glitches to fix what he saw as a deficiency in the game, instead of using it to become overpowered.
I'm not sure. I only know of about three glitches, other than that. The only glitches I come across are Quest ones and NPC ones. So its a thin margin for me, either way I dont think its crossing a line. Skyrim can be and is a hard game; the glitches/bugs present help more then one would notice. (IE Dawnstar Chest, Deth-Roll, etc...)
I know you worked on him with it. What I'm wondering is why you lashed out on me for defending your point that it has it's weaknesses, I experienced the build differently than you though, so in my experience I guess I focused more on melee since I had little trouble dispatching bandit camps on Expert(+) Without a method of ranged combat and little sneaking prowess the build has at least a few obvious weaknesses, this is a good thing.