I probably take a bit longer than most people - I'd say a few minutes, possibly five, for that last thread that failed.

Is there a specific timeout, or is it variable ?

I just tried a quick test by taking a known time (just over 10 minutes) to create a new thread. I hit 'Create Thread' for that a few minutes ago and it failed. So I think you're probably correct.

Can you add a warning about the timeout to that page ? It's not the timeout itself that's the problem, but the fact that I've taken a long time to get the post correct, and when it fails to create the thread I lose everything that I so carefully typed ! Perhaps I should adopt a more slapdash approach ? ;o)

Here's the text of the thread that just failed to create (probably spurious information now):

---

The 3Dcheapskate* occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.

*also available in ShareCG, DAZ, and HiveWire3D flavours (the DeviantArt and CGBytes flavour have been discontinued).