I would like to start by saying that, due to the nature of the event, I am not able to provide direct observation/confirmation for all cases. However, my description of what happens is based on a collection of information/events surrounding what appears to be similar behavior.
Has anyone else noticed that older threads (started 1+ years ago) seem to be automatically removed from the messages dropdown? It has been happening to me for a while now but I bring it up now because it just happened again. Basically, I log in and see my messages count in the corner. I navigate around a few pages (non-threads) and, at some point, the count drops. On a few occasions, it has happened while I sit on the same page having just logged in. While I suppose some of this may be caused by posts being removed, on a limited few occasions, I have had the menu open, seen an old thread, and then have it disappear without doing anything on my end. When I go to the old thread, there actually is a new post.
Of course, since the threads are old, it is rare for them to receive new posts. As such, my dataset is extremely small. Nonetheless, has anyone else noticed this or am I just going crazy? Perhaps this is on purpose; to prevent necro threads?
Examples:
No Screenshots
This Thread