Does this mean no LINK back to old threads?

I just read one Stickies from B/S/T

and :
Signatures
Allowed: most things
Not allowed: adult sites
Note: linking to vcc sales or stumbles, etc. within the forums is not allowed (i.e. old threads) but linking to external sites is okay.

Does this mean no link back to Old threads??
For example, I have created one thread for one Service in my signature link.
Isn't that allowed anymore???


Thanks in advance.