Ah yes, but hopefully the decision to pin or not to pin will not be taken because of the number of views but on the possible importance of the topic. In the end I won't be able to find new uninstallers and this topic will assuredly fade away into obliviance.
There are many topics which are equally or possibly more important, but if they were all given pinned status then the first page of results would be pinned topics and that would annoy me no end.
I have seen this in some forums and it is a real pain in the rear.
Many of the regular helpers on the forum will no doubt have saved the link. I know I have and can pass it on or more specifically a direct link to one of the more common culprits Norton, McAfee, etc. etc. to those whom we feel need to ensure their previous AV is removed.
The main problem as I see it is that for the most part the user hasn't got a clue that the problem they are experiencing could relate to remnants of their previous AV. So they wouldn't actually be looking for a list of Uninstallers, so even if it were pinned, that wouldn't achieve anything as they wouldn't be looking for that.