You don't really have a choice. A company has to provide GAAP financial statements. And can also include non-GAAP financial metrics that "give a more accurate view of the operations and financial situation of the company." But they cannot do anything they want, there are rules imposed by the SEC (for example, they have to explain how to reconcile the GAAP and non-GAAP results).
For LinkedIn, from the press release for Q1 results:
"GAAP net loss attributable to common stockholders was $46 million and non-GAAP net income was $99 million."
https://investors.linkedin.com/events-and-news/corporate-pre...