I actually created it for myself =D
but my friend wanted to use it too so I made it public.
It is very easy to use..
If you want to buy anything type:
!Buying
!setprice
and your bot will message it to all the channels it is in every 600 seconds, 10 times.
If you want to remove your request type:
!stopbuying
If you want to sell anything type:
!Selling
!setprice
and your bot will message it to all the channels it is in every 600 seconds, 10 times.
If you want to remove your item type:
!stopselling
Special thanks to napa, mountaindew and all the others who posted a comment on the !brb and !back script I made like 2 weeks ago.