What is the purpose of reporting spam?
Admins do nothing to delete them.

I have not seen any?

They do eventually

Hi, thanks for reaching the DJI Forum. We do appreciate bringing this to us. If we do see  Forum posts that are not bound to our Forum rules we immediately take actions for the said posts. Your time is highly appreciated. Thank you.

But they do delete them, don't they?  

Well here is my experience  just a day after this post https://forum.dji.com/thread-164847-1-1.html all the spam were deleted and they even change the Forum User Right to reduce the spamming

I haven't seen any since I have joined

Droffarc Posted at 11-2 02:40
I have not seen any?

often, if very old topics, mostly with very few answers, showing on top of the listings, there is a big chance, it is Spam/Advertising.

What I am worrying more, these days: The list of DJI topics gets longer and longer and longer.
Right now, there are 15 DJI-topics online, before the first actual one from forum users.
I don't really think that more as 3 month old "actual" DJI topics need to be on the front page.
Actually, in the Mavic forum there are 21, in Osmo 16 DJI topics, 19 in Inspire.
Probably I shouldn't bother, should I ?
;-)

S-e-ven Posted at 11-6 04:26
often, if very old topics, mostly with very few answers, showing on top of the listings, there is a big chance, it is Spam/Advertising.

What I am worrying more, these days: The list of DJI topics gets longer and longer and longer.

I agree with you. DJI should make new header for DJI posts, advertsing, news flashes etc.

I ran a forum for a period of time and from that experience I can say I know first hand how difficult spam can be to control.