As anyone who has ever made the mistake of signing up to receive information about online colleges and traditional universities with extensive online course offerings knows all-too-well, the ensuing harassment undertaken by the telemarketers acting on behalf of the various "institutions of higher learning" can be a major detriment to one's quality-of-life. The callers have no regard for the privacy of their victims, calling seven days a week, and numerous times each day at that.
Their goal is to get the victim to agree to attend their substandard self-proclaimed educational institute for the sole purpose of persuading the telemarketers to leave them alone.
I have been called by online universities and payment processing companies as early as 6:30 am, give or take five minutes, as late as 9:00 pm, not to mention on weekends, when for a period of several months I would receive several calls each day without exception.
I know I didn't sign up for this harassment. But how then would they get my information and what would lead them to believe I had any interest whatsoever in attending their bogus universities or switching to their payment processing service that has to rely on cold calling in order to generate leads. This tells me that their service must not be very good if mass media plus word-of-mouth is insufficient to generate attention, and if they must resort to calling me hours before I'd otherwise wake up on a Saturday in order to inform me of their company's existence, I will continue to interpret that as their way of saying that neither their service nor their company meets my standards.
The most important lesson to take from this is that if you have an enemy (or enemies), and you'd really like to get at them good, sign them up unknowingly for information about taking college courses online and/or hiring any one of a large number of payment processing companies which all appear to use the same telemarketing service to inundate unsuspecting would-be customers with unwanted phone calls.