Excellent foreign teachers thrive working for Yuming. If you're active, knowledgable, alert, and entertaining in class, you've nothing to fear at Yuming.
The foreigners complaining about Yuming are bad teachers who cannot inspire their students, causing Yuming to cast them aside. On account of this, they seek vengeance by giving the company a bad name online by means of outright lies. They'd be better to look closely at their own failings as teachers than to blame the company.
YUMING IS GREAT FOR GREAT TEACHERS, THAT'S THE TRUTH, BELIEVE ME!

I'd sooner look more closely at the fact you are not a native English speaker and point out all the flaws in your post. Over use and misuse of commas and punctuation. "Than to blame" should be "as opposed to blaming" and even without the grammatical failings has anyone else noticed how "non native" the way the post has been written. A native English speaker just wouldn't talk this way:

The foreigners

YUMING IS GREAT FOR GREAT TEACHERS, THATS THE TRUTH, BELIEVE ME!

Those stand out a mile for a start but the whole thing in its entirety just says NOT ENGLISH!!

Plus, as has been pointed out already, there are no follow-up comments made by the poster just like every other post here and elsewhere from so called teachers praising Yuming.

What Helen, Amy or Caroline fail to realise is that whilst they keep stating people are spreading lies most of what people have posted is easily provable if the reader wants to find out.

Lets use the following as an example. National holidays for schools in China are over 2 months. You can check this out with any school, any teacher and the authorities. Yuming however list the school holidays for the Summer period as 4 to 6 weeks which is significantly less. Plus you can ask any teacher in China on any forum what to expect as far as the length of time a teacher will not be required during this period. They will all tell you the same thing. FT's are not required for a period of time just prior to and just after the children are on holiday making the FT's time off significantly longer than the official national holiday. No lies that is simply something called FACT!!!

Yuming have been/are/continue to be THE WORST teacher recruitment company in Tianjin. Have earned the extremely bad reputation they have and deserve all the bad press, loss of business and failure to recruit new teachers that they get. They are very well known throughout the expat community in the city and any teacher who has not just stepped off the plane still green knows to stay well away from this horrible excuse for a company.

Yuming will NEVER do what is required to be a reputable company and even if they were to try it is too little too late. A bad reputation is not something which can be shaken off or hidden from. Even if they were to change names and start over people would find out who they were and their reputation would catch back up with them in no time.

It doesn't matter how many times they make empty threats on the internet, how many years have they been taking legal action now??? How many fake FT posts they make defending the school, people can smell the BS a mile away. The only people they are deluding are themselves. Yuming are in trouble. They have screwed around far too many people for far too long and you can only do that for so long before the word is out. They have lost business with schools for their unprofessionalism, are struggling to find places to advertise where follow-up comments are not posted slating them and/or having their ads removed and as such are also struggling to hire enough teachers year in year out to cover their portfolio.

It is not a matter of "if" Yuming will bite the dust it is simply a matter of "when". And in my opinion and based on the sheer amount of chatter about them both in the community and online my guess is not long.