Links in signiture line. O.K. or No-no?

[Runsalone]

I tried to find it in the rules or FAQ but no luck. Is it cool to put links to your trade/sell threads in your sig line? Now that I have one
Dont wanna do anything to mess up!

See below.

 

[Spark]

It's fine

 

[Runsalone]

Cool, just checkin. Still tiptoeing around my gold membership testin the waters.
Thanks Spark.