On a long term work visa, you can take leave. Be realistic.

WTF

If you want to quit before your visa ends, most employers would want you to work up until the last day you are in China, or close to it. If you have compassionate business to deal with it, and your employer agrees, there is no reason why you cannot just continue to use the same visa until it expire; treated as leave.

I can see the potential for down voting being counter productive. Although it does not produce trolls, as trolls already existed; but they do need to be controlled. Especially with the rules and sanctions leveled at Websites in China.
I also believe that up votes will encourage participation.
On another website I visit (The Guardian) there are up votes only, they also have active moderators who will delete posts that are outside of the forum rules and guidelines.
I also know other websites that moderate actively, and delete, even without up/down votes. The cries of 'censorship' and 'freedom of speech'are overused IMHO. There are other Websites with no control and to be honest they are toxic places that most people don't want to visit, but if people want total freedom of expression, those sites are out there for them, but I don't think we need to let them come into our (GoK community's) front room and piss on our rug.

There are no real bargains in China. The stuff that is much cheaper is normally of much inferior quality. Cheap electrical (not electronic) goods often have sub standard wiring and may only last a few months. No guarantees either. I have had 3 pin trailer sockets/power strips with a three pin plug, and only 2 core cable. I have bought plumbing items with 'brass' fittings. After a year they crumble away because it was really white metal. Childrens' toys that would be considered unsafe back home. Items made with steel that have not had a primer before getting a top coat of paint, result rust.

There has been a huge clampdown on fake goods being sold online. However, substandard goods are still common, and a big indicator is price.
If I can I buy from the flagship stores on Tmall. They might cost a bit more than their competitors, but you get confidence of purchase, after sales service, and they give refunds.
As for bricks and mortar. I have been asked 160 for a cycle lamp, that cost 40 on Taobao. After sales service? You have to fight for an hour for a refund, if you are lucky enough to get one, we have even called in the Police before the shop has given a refund (only works for larger purchases). One big advantage of Taobao is open/visible pricing, which stops price gouging.