I feel that the unanimous answer to this question would be YES in the past also.
But after the recent upgrade in Alibaba website, the problem has been exaggerated a lot.
Just to share my experience, I am now receiving 20-30 spam emails daily which are primarily being sent from some HK IDs. Although I used to block them always but those mails again re-appear with same or new IDs.
Recently, there is a new form of spamming which I have been experiencing. i.e. from another reputed B2B company named www.ecvv.com.
Their executives are contacting and sending mails from different addresses over Alibaba and trying to talk over trade manager to persuade for opting free membership at their website.
The problem doesn't end here. As in my case, I was already a free member at ecvv.com and informed their first executive that we don't need to be contacted again and again but still I am receiving their 4-5 contacts daily over trade manager who are trying to explain me same thing repeatedly through various IDs.
Are you also a victim of all these in the recent past? Kindly share with us about your experiences on the spamming which got you annoyed and what do you think could be the way out?