Screen scrapers may make it less likely that consumers will want to visit their banks' Web site, and they certainly don't help the brands the banks have worked so hard to build. They also introduce some security risk, since a hacker who gets into an aggregator's database of login information would be able to easily empty a bank account.

Damage caused? You bet!

Emphasis mine.

Screen scraping's original purpose was to get information out of mainframe computers and into client server systems. The new breed of screen scrapers use HyperText Markup Language to pull information off one Web site and deposit it into another site or a database, even if the two sites are not connected or if one site would prefer not to share information with the other.

Screen Scraping Makes Web Comeback:

Perhaps technically true, but a lot of sites just plain block CallTheShots' access to their servers. For instance, I don't think you can get Slashdot through CallTheShots.com. (BTW, I've talked about CallTheShots.com before.)

And a small correction to the article:

Cherry-Picking The Web: "Metabrowsers let surfers select whatever content they want from anywhere on the Web and gather it all on one site." More integrity dissolution.

It's just a hopping day today.

This principle was true 200 years ago and will be true 200 years from now. If we violation this, we will end up in the position that Britain is in.