Cleaning up the [dust]

Question

When reading the question Dealing with lunar regolith I looked at the [dust] tag and saw there's also a [space-dust] tag.

Reading the first level descriptions it sounds like [space-dust] is supposed to be, erm, dust floating in space, and [dust] is dust on planetary surfaces. Maybe? But the usage of the tags does not bear this out.

I was about to go on an tag edit rampage but decided to ask first if this was the true intent of the two tags.

Or should they be synonymized?

[dust] ==> used 38 times

Questions regarding small, clustered pieces of dirt/rock, and it's effect on space exploration.

[space-dust] ==> used 13 times

Questions about Cosmic-dust which is a dust found in the cosmos, capable of interacting with the electromagnetic radiation and they are formed by supernovae, birth of star.

Answer 1

In the related discussion linked in the comments, users previously rejected my proposal to make dust a synonym of regolith, even after I pointed out the existence of the space-dust tag and that subset tags can be synonymized to the superset. If we are going to maintain the existence of the dust tag, I agree with you that we need to make it more clear that it relates to planetary dust and what the distinction is between dust and regolith.