What affects did these Pariahs have on the Emperor, the

Nothing because the sisters of silence were a stupid idea like all of the Horus Heresy novels that blatantly contradicts all preceding fiction and information about the setting.

>>51146604
Nocturnal emissions.

Pretty sure the Emperor just tanked it.

The Emperor has always been portrayed as a big hulking wizard who dun giv no fuks. So I think he just tanked it.

>>51146604
>the Emperor

Same as with any other Psyker, the Emperor just had enough willpower and internal Warp energy (it's more a ratio thing rather than 'Nullfields immediately destroy all Warp-energy) to not give much of a damn.

>the Webway

See Emperor, the amount of Warpstuff that goes into generating and stabilizing a Webway tunnel is huge, we're probably talking minor destabilizations if a lot of them were grouped together.

>Magnus?

See Emperor, only slightly less fortunate.

That being said, this; >>51146634

>>51146604

Spontaneous erections.

>>51146604
You know how there is always that one friend that just does not fucking make a sound, and always comes up right behind you and says "Whats up?" and scares teh shit outta you?

Same thing here, the big E was thinking about putting bells around their necks so he would stop loosing his shit when they pulled this crap.

>>51147682
... In the Emperor, Magnus... Or the Webway?