Indication of merged threads

I think it would be beneficial to have some sort of indication of where threads have been merged. If a footnote is counter to the system - it wouldn't be an elegant solution, but at the least, the merging mod can add a post indicating this. The dates on a post help to provide clarity in these cases, but it takes some detective work.

I think that this would improve the way that threads read. Contributors wouldn't look like spammers, and OPs would maintain some logic where they might lose some otherwise. Integrity of content would be improved.