[ApplegateRanch]

Let's try refining the expostulation:

It is time for some scientists* to stop putting forward unprovable conjectures disguised as hypotheses.

Better?

*The same some scientists the press is fond of quoting, but never identifying.

[decimon]

It is time for some scientists* to stop putting forward unprovable conjectures disguised as hypotheses.

Better?

No. Why should they shut up to satisfy you? Discovery, like this thread, is for people interested in the speculation and debate.