Yes you heard right ebay is going to ban negative comments about buyers, well i dont think this is very fair what happended to freedom of speech this is meant to exist on the internet to a certain degree, if the language was particularly bad and aimed at one particular buyer or seller then they should contact ebay about it, but i do see that ebay has a reason behind it but it is still removing the right of anyone to voice their own opinion against some one.
Source: BBC
