[tssva]

"credible inferences" means assumptions which fit the narrative we want to tell.

That disclaimer is basically a long-winded way of saying our study provides no evidence of anything.

[robocat]

However there is good reason to suspect a series about suicide would cause suicides.

"The average increase in motor vehicle fatalities is 9.12 percent in the week after a suicide story" (I love the extra 0.12 points!): https://www.ncbi.nlm.nih.gov/m/pubmed/867044/

So the implication isn't so much about copycats, but about contagion.