Discussion is generally not deleted for being too old, since the content could still be useful for others to look at or maybe even resume discussion of.
@flovo, I don’t think this is a good argument for auto-closing threads. I think it was appropriate that @egb asked a follow-up question in a relevant thread, which provides context and information, and might increase the chances of that question reaching the relevant audience.
Just because a reply went off-topic, it does not mean that the original necro should have been forbidden.
We’ve had a similar discussion before
I would prefer to see that even the OGS Development category have the auto-timeout removed. I understand that the motivation to so do is that the website is constantly changing and that feature/bug discussions can quickly become stale. However, at the same time, there are plenty of discussions about features/changes/bugs that still remain relevant even after months of inactivity (e.g., since no relevant changes have occured).
In this case, a moderator even reopened the discussion of an old OGS development thread