I have a mild complaint against this.
For my brake pads thread, I tried doing inventory updates as a new post. Most members ended up asking me how many I had left.
I eventually stopped doing that and just kept updating the first post with numbers for prices, shipping info, quantity on hand, next expected shipment of more inventory, etc...
Now the new guidelines no long allow me to do this but I prefer it that way it is because I hate it when an entire for sale ad is deleted. It is bad enough pictures can be pulled from an image provider.
Sorry, had to vent.