I feel the need to point out that there's been quite a few of these lately. You know, the garbage ones where they're offering their coupons (and nothing else) for your cards? The ones that are in theory against the rules.
http://psteamcommunity.yuanyoumao.com/groups/OneToOneCardTrading/discussions/0/864975632331945267/
http://psteamcommunity.yuanyoumao.com/groups/OneToOneCardTrading/discussions/0/864975632283610978/
http://psteamcommunity.yuanyoumao.com/groups/OneToOneCardTrading/discussions/0/864975399847728736/

...and that's just page one. Are the no useless clutter trading rules still in effect?