Avoid unusual characters in your name
Including punctuation marks or numbers in your name could raise a red flag. Google doesn't want you to use a title such as Dr. or Prof. in the first or last name field, and even a suffix such as Jr. (with the period) has been reported to cause problems.
Apple co-founder Steve Wozniak initially set up his profile using Unicode international characters to make it appear he had spelled his name upside-down (Google had him fix this without deleting his account). Google now specifies that you should spell your first and last name "in the same language" meaning also the same character set.
A profile should represent a person, not a group or business
This is the rule that is being enforced to shut down business accounts, but Google also says you shouldn't have a single profile to represent a couple or any other group of people. Google did go public early on with a request to businesses not to create profiles because it wasn't ready for them, but this was widely ignored. Techcrunch blogger MG Siegler briefly established a profile as "Techathew Cruncherin" as a way of protesting the way other businesses were flouting the rules and driving significant traffic to their sites, while Techcrunch had been trying to play by the rules. But the Techcrunch profile was subsequently shut down, along with Mashable's and many other business accounts.
Enforcement is uneven, and it's still easy to find active business profiles like the one for Lyons Toyota, a dealership in Mason City, Iowa. But if you should succeed in attracting significant attention to a business profile, you would also be more likely to attract the attention that will get it shut down.
Suspensions can be appealed
One of the complaints about Google's policy is that accounts are suspended without warning. Once you have received a suspension notice, however, you can file an appeal "to support the claim that you are using a name in compliance with our policy," according to a support forum post by Google+ Community Manager Natalie Villalobos.
Open source hardware maker Limor "Ladyada" Fried was able to get her profile restored after it was shut down over the weekend. It may have been flagged because the profile was at one point published under the name "Adafruit Industries." Celebrity helps: Fried was recently on the cover of Wired.
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