"It's very frustrating," said Athanassiadis, 57, who recorded his online ordeal in more than 100 computer screen grabs and commentary that he shared with CNBC.com. He entitled the odyssey,"Nightmare: A lost month."
"I probably have spent two or three hours a day [trying to create an account]. I'm not kidding," said Athanassiadis, who is currently looking for a new job as he pays $750 per month for a Cigna health insurance plan that he began in September.
On the first day of visiting HealthCare.gov, for example, he encountered a screen that was meant to have him enter the answers to three different "security questions" that could later be used to verify his identity if need be. But none of the drop-down list of questions had any actual text in them. So "I just gave imaginary answers to made-up questions," he said.
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Another time, his wife became listed, for some unknown reason, as his 10-year-old son's "son/daughter" when he adjusted his entry to apply for an account covering only him and his son, without his wife.
Even the toll-free help line that officials urged people with problems on the site to call wasn't able to help him create a usable account for several weeks.
"It's horrible. I'm truly ashamed to say the U.S. has come up with this," said Athanassiadis of HealthCare.gov. "If I were the head of this project, I would have resigned before somebody fired me."
"If this website belonged to a health insurance company and I had options I would never opt to buy a product or service from this company. I guess, in our case, a lot of us are handcuffed," he said.
In fact, Athanassiadis' experience trying to shop for coverage for his family on HealthCare.gov mirrors those of tens of thousands of Americans who have been unable to create accounts on the website. Unlike a number of states that are running their own Obamacare insurance marketplaces, HealthCare.gov requires that step before showing visitors the true prices of the health plans on sale there.
Unlike most of those other frustrated people, Athanassidadis kept running, detailed records of his efforts, which reflect how widespread HealthCare.gov's software problems have been.
"The system does not respond in the same manner, time after time," Athanassiadis noted of the multiple problems he has encountered. "Every time, the system seems to be responding in a different way."
"The issues with this website are serious, annoying and cannot be dealt with by most users," he said.