How to using STRING database correctly?

So many people has done it in a wrong why, in this paper, Dr. Zhou describe all the hidden limitations of STRING database and he proposed the correct way of using STRING database and his correct way of using STRING database has been widely accepted and cited.
Refer to his work,
*Zhou, Hufeng, and Limsoon Wong. “Comparative analysis and assessment of M. tuberculosis H37Rv protein-protein interaction datasets.” BMC genomics 12, no. Suppl 3 (2011): S20.
http://www.biomedcentral.com/1471-2164/12/S3/S20