Old thread resurrection and My Stuff

[FiF]

I use My Stuff tab to keep track of updates to threads to which have previously contributed or watching. I'm sure many others do the same.

Also use a quick look in What's New.

Have recently seen a few resurrected threads in What's New that I think must have missed that one previously as it's not in My Stuff, but is the sort of thread which would have been of interest, yet having had a look it then turns out that I have previously contributed after all.

An example is one running about No Access signs.
https://www.pistonheads.com/gassing/topic.asp?h=0&...

So why isn't it in My Stuff?