There is a question here on math.meta.stackexchange requesting hide/show features for posts. The person was then asked to ask the same question on the meta.stackexchange, where their request was rebuked (for what I feel like are poor reasons).
Is there any update on this situation? Either an implementation of hide/show within the stackexchange framework or a workable alternative. I think that such hide/show functionality would be very useful to hide remarks from a longer post, where such remarks could disrupt the flow of the main conceptual thread of the answer. I have been using the spoiler functionality for this purpose but it is...unwieldy.