Should be a rule regarding classified ads, that whenever possible, items of similar nature be grouped together.

so, if you are selling a pile of Moto parts, post it as a garage sale.

Or,

If you are selling a pile of snowboarding equipment (kaotic trance) you sell it all as a snowboarding gear sale.

All in ONE post. Not 5 or 6 or more.

If not imposed, I will be more than happy to purge my garage with individual posts for each of the items I am selling. You can see the potential problem of clutter....