Whether you buy or sell something, it counts as a valid sale now for non-unusual suggesting.

Reference: https://forums.backpack.tf/index.php?/topic/36705-rules-for-non-unusual-suggestions/

From now on, if you make a suggestion using just sellers/buyers and mods consider that you could have easily found sales, your suggestion may be closed without giving you time to close it yourself. This is to encourage people to check markets properly and make sure they have the most evidence possible before suggesting. If you absolutely cannot find anything, you can still suggest with sellers/buyers if the change is meaningful. I am not putting a #% on meaningful. It's context dependant and I'd like suggesters to start using some common sense and making arguments for their chosen ranges.

I keep seeing "buyers counter" on non-unu suggestions when buyers/sellers are 1 scrap below suggested price. To clarify this; buyers do not counter if they are successfully buying. Those are sales.