Nothing prevent you from opening plugins without UI if you are wary of the halo effect. We spend a lot of time on audio algorithm, much more than the UI. In th

Nothing prevent you from opening plugins without UI if you are wary of the halo effect. We spend a lot of time on audio algorithm, much more than the UI. In the end plugins have to sound good whatever their UI, it's just that when you work hard on a DSP algorithm it only makes sense to present it in the best way, and not spoil your chance.