If you are not actually researching your opinions I think that makes you a columnist... (see Sarah Vain, Boris 'how many kids this week' Johnson etc).
You are now getting to the difference between news and commentary.
As an old-fashioned hack, I believe they should never, ever, be mixed.
Regrettably, my view has been overtaken to the point of being wiped out.
Even proper news organisations do it.
Nearly every BBC News report is made up of the newsreader interviewing the reporter, who tells us what the various participants in the story have said.
It is lazy journalism, the reporter ought to be going out, interviewing those involved, and letting them tell their own stories.
Politics stories are now very light on news content and very heavy on commentary by the so called political correspondent.
Had I suggested to one of my old editors I was going to cover a story by interviewing colleagues he would have thrown me out of the newsroom.