Why not instead of completely disabling the proxy, put some disclaimer in the bug reporting thread about how you mustn't use the proxy feature while hunting for bugs?

Or make people specify, in the same post they're reporting bugs, if they're using Proxies or any of the crapware you mentioned?

How is sweetfx crapware?

It's nothing but another injector just like SMAA that you can pass through the proxy feature. It's never caused me any trouble, not in 0.193 nor in 0.209...