I share that concern too!
I have just placed an order, and the thread owner has asked that I leave a comment for easy tracking, but the thread is now closed! So, I have an active order from the closed thread! It's a little bit disconcerting.
I found some services that I'd like to use, but the threads are closed. I have been watching them for a couple of days now, but obviously the threads may never re-open. I contacted one of the closed-thread owner asking when the thread will reopen, and she told me she is not planning to re-open - too expensive! So, effectively I took my business outside of WF. And, I am pretty much sure this is what's happening right now - a lot of business will be taken outside of WF.
This will primarily affect low cost providers as they simply won't be able to continue providing their services at the current low prices.
As a buyer, I don't want to be chasing the threads. I want to bookmark it this one time, and get back to it at my convenience. Definitely, threads processing active orders should not be closed! As a customer, I need an assurance that the business continues as usual. Closed threads make me nervous. What if it will not re-open? That already prompted me not to order anything particularly pricey and turn elsewhere for business.
My other concern about the new threads being opened every 10 days or so is that it's too short a period for people to post their meaningful feedback. For instance, I tend to wait 5-10 days after the report has been received before I post my feedback as I like to make sure that the results are consistent and long term. When I get the report and the thread is closed, I won't bother to leave a feedback. Also, 10-day threads mostly have order confirmations, and no feedback. This is because there's simply not enough time for people to evaluate the actual results. And when they do have the results, the thread is already closed.
I am sorry to say that but this was a great place to do business. Something must be done quickly, or buyers like myself will go elsewhere.