Some eBay members prefer to post here with a posting ID. It's not only permitted under eBay's Multiple account policy, but in fact - to the best of my knowledge - it was suggested at one point by eBay moderators (in the days when the forums were looked after and moderated by eBay employees specifically employed for that purpose amnong others) that some members should have a posting ID in order to protect their trading IDs.
As far as I understand it, this was mostly for eBay members who were selling, since selling accounts are more vulnerable to abuse. (Revenge purchases, malicious feedback, etc., being among the range of behaviours which could actually destroy someone's business just because of a difference of opinion on the boards.)
It doesn't appear likely to me that your account is in any sort of danger. Your purchases can't be seen (just to reassure you), although your feedback does show that you tend to buy from Chinese sellers.
If you're curious to see how much information is shown to others, you're welcome to click onto my feedback score to check the feedback I've given or received. Other eBay users can see the sellers, the coloured dot, and the feedback comment. As I am not an eBay seller, they cannot see the item number or item description. I tend to give item details in my feedback, a habit I acquired to be able to recall from whom I bought what... but if I stated in one piece of feedback, just as an example, something like "Superfast jetpack; took it for a spin over Kiribati - impressed! Thank you!", you'd never be able to tell that what I'd actually bought was, again just as an example, an English terracotta garlic grater.
