Please help me to understand an English sentence
If you're an Internet service provider (ISP), you may find that effective anti-spoofing, together with other effective security measures, causes expensive, annoying problem subscribers to take their business to other providers.
Does "expensive, annoying problem subscribers" means "demanding, troublesome, and problematic customers"?
And " take their business to other providers" means "(the customers) move their business to your competitors"?Thank you very much, but I am rather perplexed because even native speakers seem to interpret this sentence differently. This sentence was quoted from a Cisco's document: https://www.google.co.jp/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CDAQFjAA&url=ftp%3A%2F%2Fftp-eng.cisco.com%2Fcons%2Fworkshops%2Fisp-workshop%2FStudentCD-Rev-E%2FWhitePapers%2FImprovingSecurity.pdf&ei=Cr-7UfqlD4akkgWq4oCwBA&usg=AFQjCNEDOEeOvLn_htnOu91gY-2HIOfUjQ&sig2=f0KN16KljSL0hCjmKgoA_A&bvm=bv.47883778,d.dGI