Could I request that all builders of grinders in the end, build at least 128 blocks away from other grinders and the main "island".

This is so the grinders work.

Why not make just one ender grinder? if we all pitch in we can make a very optimised one that is ok for use of multiple people =)

This is the problem , the end is technically 'free build' as long as its not grief , your always gonna get someone building to near anothers build or near the main land mass , thats why it gets annoying , im not sure how to combat it but the above seems a reasonable tactic.

lets blow the main island up

I agree with Shad, if we blow it up then it will optamise the grinder, of which there should be only one!, and it will stop builders. So I am shocked to find out that there is already 4 WIP which is a truly ridiculous waste of resources and i cannot fathum why you would want multiple grinders it is just silly only one is needed !

It's a free world, your practically unlimited to do what you like as long as its within the rules of the server.

There has never been an issue with more than one grinder from what ive seen as long as they are 128 apart. And as for blowing the end up thats a bit extreme people still like to use the end. Also (not that MOST people would) but i dont wont people stealing from chests that i normally put at these farms

How do end grinders work? I haven't even visited "the end" yet.

some are pistons that push enderman off a cliff and kill em... others are just a structure made so enderman get trapped and slashable at the first 2 blocks of its body without being able to attack you or tp away