There's a bigger problem inherently here—there are both compound-sentences and compound-words (although we haven't used that tag on E.SE). We should probably retag each of the questions to the right tag, and then have compounds added to the blacklist.
I've submitted a suggested edit for compound-sentences.
Quick draft for compound-words:
A compound word is a word that has two or more word stems. They can be classified either semantically or formally, and both classifications are described below:
- Endocentric—where the compound word's first stem marks a special type of the second stem (e.g. dark + room)
- Exocentric— ? (I don't like the Wikipedia definition and I can't come up with a good one myself)
- Copulative—where the compound word's stems are the sum of the two stems (e.g. sleep + walk)
- Appositional—where the two stems make up different facets of a role (e.g. maid + servant)
Compound words can also be classified formally, where there exist noun-noun compounds, verb-noun compounds, verb-verb compounds, and compound adpositions. The derivations of the classifications is easily understood except the fourth, which is made up with a preposition and a noun.
Derived from the Wikipedia article, licensed under CC-BY-SA
MSO question about using WP articles (for those of you that are curious).