"avoid Toshiba and companies with a similar behavior – I take such behavior as a signal."
What specifically is it a signal of though? What is the specific thing you feel you are protecting yourself against by noting this signal?
Here's an example of a "signal" that I just interpreted. I made an inquiry at Rackspace and the sales person was all over me for the transaction. Then I had questions about the AUP. The salesman responded with a 1 sentence answer which basically restated the AUP. I wrote back saying I already knew that and restated the questions. The salesman still hasn't (4 days later) written back. Even though the other questions were answered super promptly. Same day with gusto. (I don't expect I will hear back). But I've received several canned emails pushing me on how easy it is to setup the account and get going!
To me that is a signal. He is all over us when he might get business. But isn't able to answer a few simple questions and he hasn't even closed the sale yet. To me that is a strong reason for me at least to avoid this company. A signal.