There is another article in IT-Pro which deals with the ignorance of data quality issues.
Some excerpts that make you think:
Nearly two in every three (58 per cent) of UK executives surveyed said they could not confirm that a documented strategy exists to keep their contact data accurate and up-to-date.
Despite this, nearly all (96 per cent) recognise that inaccurate data has a direct financial impact on their operations, with 19 per cent admitting to it having a negative impact on revenue or funding.
Another interesting factor they mention is this:
Only eight per cent of organisations validate all the information they collect, where 34 per cent validate none of the information they collect and enter into their systems.
A good solution might be to install a proper Data Quality Firewall.