I want to explore the negative polarity.

[Ohr Ein Sof]

Actually, this thread has got me thinking about the implications of STO individuals in third-density serving a STS individual by helping them graduate into 4D negative. Is this legitimate service?! Obviously this wouldn't be done by allowing one to be controlled, but potentially by giving advice? Or maybe by allowing the STS entity to believe it has controlled the STO entity (by the STO entity not feeling a need to challenge the claim of domination).

The energies of your Wanderers, your teachers, and your adepts at this time are all bent upon increasing the harvest. However, there are few to harvest.

If the above case is true, then would a STO wanderer's energy also be bent on helping those of STS polarity also be harvested, especially if that is the only way the third-density STS entity is likely to be harvested?

19.18 Questioner: I assume that an entity on either path can decide to choose paths at any time and possibly retrace steps, the path-changing being more difficult the farther along is gone. Is this correct?

Ra: I am Ra. This is incorrect. The further an entity has, what you would call, polarized, the more easily this entity may change polarity, for the more power and awareness the entity will have.

Those truly helpless are those who have not consciously chosen but who repeat patterns without knowledge of the repetition or the meaning of the pattern.

So is it better to see-off a STS entity graduate onto their 4D planet of choice, as oppose to trying to change its mind, potentially depolarising it and thereby causing it to be one of the "helpless" who cannot graduate?

Am I missing something here? Are these questions stupid? Help(!), anyone?

If the above case is true, then would a STO wanderer's energy also be bent on helping those of STS polarity also be harvested, especially if that is the only way the third-density STS entity is likely to be harvested?

Ra is speaking of the positive polarity harvest here.
And, I think your assumption is correct that it would do any of us any good to assist an STS entity to increase their polarity although, it will happen as they use clever ways to ensnare the positive polarity. This is why I believe it is so important to have discernment or a knowing of your environment and the company you keep but also your mental company also known as your thoughts. Understanding that the negative polarity has the same freedoms as you and honoring their freedoms is paramount but, will not come without a deep understanding of the game of Life. The positive polarity will always seek to understand and forgive another's so-called shortcomings and the negative will always seek to control another's movements while the fellows that make up the sinkhole will become indifferent to The Game.

So is it better to see-off a STS entity graduate onto their 4D planet of choice, as oppose to trying to change its mind, potentially depolarising it and thereby causing it to be one of the "helpless" who cannot graduate?

Those who are not conscious are the victims Ra speaks of...they do not even know they are to do anything at all but to wake up each day, do what they do and then retire to bed at night not giving one iota to what this world is really about, what we are here for, where we came from or even if there is anything of true infinite value.