Have I missed something? Since when could threads no longer be merged?
Is this something to do with forum software (as with the search and poll problems)?
Yeah, Luke mentions it in this thread
The recent forum upgrade actually wiped out our ability to merge threads, which is why we haven't been able to do that in the past couple of weeks. I think it's best to do more forum-wide upgrades instead of just trying to install a temporary modification, so please bear with us until that happens. Thanks!
An upgrade was supposed to happen in January, but if I recall correctly, Luke said the person that was supposed to take care of it didn't follow through.