Ann: First Australian Card Acquiring Contracts Executed, page-32

Interesting point of discussion.
Some may care somewhat.

An example might be online gambling.
An industry not held in the highest regard (rightly or wrongly) that may be ethically questionable for some.

Another area may be online pornography and the large growth area of cam websites.

Ethically that's for people to make their own decisions on.

Also industries such as those can attract more onerous governmental regulation than regular online shopping for example.

Respectable clients portray a respectable business.

Just thinking out loud. Not a specific comment on ISX.