This doesn’t strike me as too smart:

A US woman was arrested this week after she allegedly tried to hire a hitman to murder her married lover’s wife by posting an ad on the popular website craigslist, law enforcement officials said Sunday.
Anne Marie, 48, from Grand Rapids, Michigan offered www.craigslist.org users the chance to kill Carol, a 56-year-old woman in California, in a vaguely worded free ad under the category of “Freelance,” according to court documents.

Two women and one man responded to the ad, with at least one applicant believing it to be an offer for freelance writing work. During subsequent emails, Anne Marie divulged that the task was actually a hit.
“Marie informed (one of the people who responded) that she was looking for ‘silent assassins’ and she asked him to eradicate a targeted victim,” offered 5,000 dollars for the job and provided the address, name, age and occupation of the man’s wife.
“Asked what she meant by ‘eradicate,’ Anne Marie said ‘Duh. Well to have her killed,” the court documents said.

When looking to off someone, posting an ad might not be the way to go.