Rogue KGB agents, disappearing crew members, mysterious cargo flights used to disappear people, mine laying minisubs, torpedo shooting minisubs, explosive charges, nuclear waste dissolving the bow visor, secret escort submarines, a government led cover-up, bridge hijackings, arms deals to Israel, CIA/KGB/MI6/Spetsnaz involvement, etc.
You can scream till you're blue in the face that you're not promoting conspiracy theories, but you are.
The fact that there is a current new investigation into the sinking of the Estonia does not absolve all the guff you've dropped in this thread from being common or garden conspiracy theory nonsense.
Even your tactics and talking points are straight out of the conspiracy theory playbook, accusing your critics of being unable to think for themselves and swallowing what the mainstream media tells them (your repeated references to Fox News, the Daily Mail and Rupert Murdoch), a government led cover-up by an investigation designed to tell a false narrative, a willingness to give credence to all sorts of mutually exclusive hypotheses just because they're something other than the "official theory".