The solution that appeases all groups is to leave it the same. This is a two-way door in which those who prefer content over grinding are given access to what they want while those who favor grinding are still allowed to do so at the pace they desire. If both parties can be equally appeased without a compromise then it makes zero sense to eradicate such a system.

If the complaint is that of "I can't level slowly because of chains..." then you can find harder mobs that take longer to kill, thus removing the chain bonus.

The only reason not to accept this logic is if you believe that your accomplishments are being ridiculed by others reaching the same level quicker than you did, thus minimizing possible exclusivity. And, if that would be your train of thought, you are weak-willed, intolerant, and ignorant. If that were to be the case, hopefully natural/sexual selection and survival of the fittest will kill you off and prevent the spread of such a vortex of ridiculousness. Do your best to look like a zebra in the vledt, please.