Here is part of Wikipedia's guide to deletion, which I think should apply to OzBargain as well:
Sockpuppeting is not to be tolerated
One exception to the principle of assume good faith concerns the use of sockpuppets. This tactic is commonly employed by vandals and bad-faith contributors who create multiple user accounts in an attempt to bias the decision process. A close variation is to enlist "meatpuppets", people from outside Wikipedia to "run in" (for example, if my article about a web forum is up for deletion and I post a call for other forum members to "help keep our website in Wikipedia"). Signs of these tactics are that a contributor's account was created after discussion began, that a contributor has few edits or that a contributor's other edits have been vandalism. Other Wikipedians will draw attention to such facts and may even recommend deletion simply because apparent sock- or meat-puppets piled in with "do not delete" or other similar comments.
You might want to go on to read the Wikipedia article on sock puppets (here and here). Some points are wikipedia specific, but I think a lot of them still apply to general Internet community such as OzBargain.
I think this is specially a problem with OzBargain, which has been often targeted by marketers. Personally I have no problem if a merchant/retailer/shop owner declares his/her relationship with the said business. For example,
Note: I am an employee of FooBar Electronics.
However we often see 1st day registrants posting something like "I found this website…" or commentors saying "We have used them before, great service!" Some of them might be genuine, and people should probably be labeled as innocent until proven guilty. However it might raise suspicion amongst regulars and moderators, and we have very good resources tracking down the sockpuppets.
So, let me make it clear — sockpuppeting is an offense on OzBargain, and will not be tolerated. You will risk your accounts and business banned from OzBargain.
Indeed!
Indeed.
Indeed ;)
Hear, hear. Thank you for making this clear statement, scotty.
Now let me activate my sockpuppets and vote this comment up :)