"Install this modification" link in threads

[BruceWebber]

I looked in the FAQ and searched the forums, and did not see an answer to my question.

On vBulletin.org, what does the "Install this modification" (or plug-in, or whatever) link in the first post of the thread do? (This link is above the link for downloading the file.) Is this simply to indicate that I will install the modification, so the creator can know who is using it?

Thanks,
Bruce