First and foremost, I don't PVP. You wanna know why? No? Too bad I'm gonna tell you...
Because I hate dealing with... This. The bickering back and forth, the salt, the insult slinging, the constant angry shouts for nerfs and buffs that never ceases because someone couldn't secure the kill or they were killed by a certain tactic.
That's all this 'conversation' appears to be, at least to me. Maybe the question shouldn't be 'Should SCB's be nerfed?' maybe it should be 'Should there be better counters to them'? At this moment, in order to crack open a SCB spamming ship (doesn't really matter which one, but we'll say a 'Python') you either need to fire on it for a while, or pour out enough burst damage to shell it like a peanut. There are a few good options for burst damage that could potentially wreck a shield, but they lack one thing that more popular weapons have: sustainability. Example? The Railgun.
Railguns are absolute monsters when it comes to tearing shields apart: anyone who's ever ran a foul of a rail-gun Asp in a CZ can confirm that, but the problem is that it lacks one very important thing... Sustainability. You get 30 shots with it, then it's useless. If you have to run back to base to reload everytime you get into a fight, then that just sounds boring. That is the primary reason why I never pack them! Same for flak cannons, missiles, and torps... The ammo count is so low, that in any sort of long term engagements people don't pack them, even though they have some amazing stopping power. I think that SCBs wouldn't be a problem if the weapons that are designed to crack open shields (Railguns, flak cannons, ect. ect.) were simply given more ammo should people would use them in their day-to-day flying builds instead of the usual Pulse Lasers and Multi-cannons/Cannons.
Heck, maybe even make some kind of charge-up laser cannon that takes a while, but does a fine job of punching the shields off a ship?
Would it be a perfect solution? Probably not; someone would find it offensive that their preferred build of ship is not as good as it used to be, but hey, it's an idea.