As promised, here are the solutions, given as taunts to send the demonic Word Eater back to its fiery prison:
Acrostic done bilingually
Reveals the word – reality
This was my undeciphered key
Now in shame depart and flee!
When needed goods are sold and bought
Value is the thing most sought.
This was my second scrambled thought
Now go, foul thing, back where you ought!