The author has the worst takes, wtf. It’s just a fluff piece anyway, but he both suggests that being "creepy" is akin to mental illness as well as believes garak and reg barclay to be creepy in that context.

For garak I can sort of see that, but mostly he is just a slick talker and former intelligence agent, naturally he has a bit of an air of mystery.

Meanwhile reg Barclay is just very socially awkward and introverted, but not creepy at all. Just a slightly weird guy who has a hard time with people