I recently asked this question. That was a homework problem; the response people gave was very nice, but in one answer they basically solved it for me. That was the most useful answer. I think there is no mechanism such that people are encouraged to use spoiler tags.
Ideally I would like that the person just gives an intuition of the answer and post the solution within spoiler tags. So when I or other people looking for similar questions could have the ability to try it ourselves first.
If you want just a hint, not a complete solution, just state so in the question. Other users don't know you want just a hint until you tell them; most users are looking for complete solutions (up to the point where Math.SE has a special close reason for problem statement questions without context, but I digress ...)
I can imagine that there are still users who want to give a complete solution (remember that they're not just answering for you but also for other people who want to know the answer!). For them, you could include a link to this answer which explains how to do spoiler markup (not everybody knows this, it's a rather hidden feature until you see it being used).
Your question only says "How should I think about this?" but that's IMHO too vague. Something along the lines of
Please note: I'm first of all just looking for a hint. If you do want to give a complete solution, use spoiler markup (
>!) to hide it. For more details on how this works, see this answer on Meta.
would be fine, I guess.