Lawsuits involving famous people generate weeks of coverage and then disappear without a verdict. The filing accomplished what it was meant to accomplish, and a trial was never the objective.
The complaint is a public document by design
A civil complaint enters the public record as soon as it is filed, and its allegations are reported before any of them have been tested by evidence.
That makes filing a way of publishing a version of events with the weight of a court document behind it, at a cost that is small relative to the attention it produces.
The other side gains an immediate reason to negotiate, because responding in public means repeating the allegations in order to deny them.
Discovery is what both sides actually fear
Proceeding toward trial means exchanging documents, communications and financial records, and answering questions under oath about matters neither party wants examined.
For anyone whose value depends on public standing, discovery is a larger threat than the damages at issue, and both sides usually understand that symmetrically.
Settlements often arrive shortly before a discovery deadline, which is a reliable sign that the schedule rather than the merits produced the resolution.
Confidentiality is usually part of the deal
Settlement agreements commonly bar the parties from discussing the terms, and sometimes from discussing the dispute at all, which is why cases end with matching noncommittal statements.
Silence on both sides means the public record ends at the allegations, and nothing ever establishes which version was closer to accurate.
Enforceability of these terms varies by state and by subject matter, and several jurisdictions have narrowed them in specific circumstances, so the details differ considerably.
Insurance and contracts shape the outcome
Studios, networks and production companies carry coverage for many categories of claim, and the insurer frequently has a say in whether a matter is fought or settled.
Employment and production agreements also route many disputes into private arbitration, which resolves them without any public filing at all.
A dispute that reaches a public docket has therefore already escaped several private mechanisms, which is part of why it draws attention.
The coverage stops before the ending
Interest peaks at the filing, when the allegations are new, and by the time a case resolves the audience has moved on to something else.
That leaves an asymmetric record in which the accusation is widely known and the outcome is not, regardless of what the outcome was.
Anyone reading about such a case months later is usually reading the loudest moment of it rather than anything resembling a conclusion.