So what are you saying then? Because it sure sounds to me like you're saying that anyone who doesn't agree with your point of view couldn't have been led by the Holy Spirit and therefore isn't a "true" Christian.
Of relevance to this discussion though, be fruitful and multiply is immediately followed by fill the earth and subdue it. Raises all kinds of questions about is the earth full? How do we go about determining when we have completely fulfilled those commands? And once we've completed the command to fill the earth (whenever that may be) should people continue to reproduce at a rate that causes them to increase in number or should they take measures to maintain the population but make sure it doesn't increase?
Most of those are rhetorical as I don't want to derail the thread any further than it already is.
That is why I added the part about not saying you and Dino or anyone else is not a "true" Christian as it is not my place to judge that. God knows our hearts and He knows who is a "true" Christian and who is not.
When we were children, our parents had rules and some they clearly specified, so we knew what they were saying and we knew very well what they meant. Sometimes, things came up for which our parents had not clearly said, "You MUST" or "You MUST NOT" but based on our knowing them and on what rules they did state, we could make a good guess at what they would say concerning the so-called unknown issue at hand. I am ruling out games children play in arguing what parents said and meant and what they didn't say and mean but we are not little children in that sense with God. We are to become as little children to enter Heaven but that means "childlike", not "childish". So, just as deep down we knew what our parents said and meant and we knew what they would say and mean about not stated issues.
By the guidance of the Holy Spirit, not by man confusing the issues to be man-pleasing and self-serving, we do know what God says and what He means by what He says and for things He has not specifically cited, we still know what He would say and what He would mean. He is our perfect Father and if we could read and understand our imperfect parents, how much more can we read and understand God our perfect parent?
As children who tried to say, "You never said ... " or "I never knew that THAT is what you meant when you said ...", we seldom won with that approach and when we did, it was more so that our parents did think they weren't clear enough. Such is NEVER the case with God. If He says something or does not actually say it in so many words, we still KNOW and UNDERSTAND what He means and He knows we do coz He reads our hearts so we can NEVER fool Him or pull the wool over His eyes.
So, the bottom line remains, that it is pointless and childish for us to say, "Well, God never actually said anything about this or that and so what are we to do?" We know what God says and what God means and we know what God would have said and what God would have meant IF we really strive to do His Will instead of our own self-serving will and IF we truly are His children who do know our Father.
Just choose any non-specified issue and say to God, "God, You never actually addressed this issue. If you had, what would you have said and meant about it?" First of all, we already know the answer but if He thinks best, God will answer us in no uncertain terms and we cannot say, "Hmmmmmmm, He never answered me" or "God said but I don't get it .. what did He mean?"
Anyway, I could, probably, go on and on citing such but the bottom line is, we are to be childlike, not childish, in our relationship with God our Father and the closer and deeper that relationship becomes and the wiser we become via the Holy Spirit, the more we know what God says and means and we know what God would have said and meant. We JUST know and understand, IF we have become one with God - Father, Son, and Holy Spirit - as we CAN become.
Finally, agree with me or disagree. I know what I truly believe and that is what I must live by. The Holy Spirit has taught me and will continue to enlighten me as I show readiness. But, we do KNOW and we do UNDERSTAND and to say otherwise, is to just childishly fool ourselves to suit our will, not God's Will.