I think that the answer is clear: Keep the SFW stuff in its place AND the NSFW in its own.

Then if you don't like R34 you just don't have to go to the NSFW sections and/or sites.
And if you DO like R34 you will have your own place to enjoy it and you will not bother others who don't like it.

And everypony happy.

Now if we just could get it done AND make sure people follow those simple rules…

(I'm sorry i keep post these, that said i'm doing it one more time. for justice!)

Its shame, in a attempt to keep this fandom clean we’ve caused a divide in the fandom.
Because both sides are overzealous and not being understanding of their fellow bronies.

People need to stop treating fandom as if its just for them
And start treating it as if it’s for anyone a part of it.

That means not attacking fan’s, just for having disagreements with them. (like them doing rule34)
And not pushing your own opinions/activities on others. Its fine to them, just not force them. (example being posting rule34 on sfw site’s)