unsent points are wasted.
Is that correct? Any statement on this? I'm just curious.
unsent merits get accumulated with the next month's merit. There is nothing like wasted or burnt, IMO. Am I correct?
Correct. Here's an excerpt from merit source page
For me (and other sources), it is. My merit page reads
"You are a merit source. The next XXX merit you spend will come from your source rather than your sMerit balance. Merit spent from your source will come back in 30 days. Unused source merit is wasted. It is not allowed for merit sources to sell their merit."