The best way for each seeker in 3D to be of service to others is unique to that particular seeker. You must then seek within yourself the intelligence of your own discernment, as to the way that you may best serve others. This will be different for each person. There is no best. There is no generalization.
Nothing is known.
Sharing information such as we are sharing with you is less important . We, ourselves, do not feel an urgency for this information to be widely disseminated. It is enough that we have made it available to three, four, or five. This is extremely ample reward, for if one of these obtains 4th density understanding due to this catalyst, then we shall have fulfilled the Law of One in the way of service. That you attempt to make this information available is, in your terms, your service.