Warmane Store purchases on Lordaeron?

Maybe a silly question. I've never used the Warmane store to buy anything through coins and such. I play on Lordaeron and I saw mention that some functions of the store wouldn't be applicable to Lordaeron because of its status as the hardcore server, but I wasn't clear as to what is unavailable.

Am I able to use coins to buy mounts for characters on Lordaeron? Is that all off-limits or just certain types of items? If only some things are off-limits, which types of things can I not buy with coins for a character on Lordaeon?

Thanks in advance! I searched for this topic on the forum and didn't find anything, so I'm sorry if I just missed it!