Actually, no. Any suggestion that saying "because I think so", without providing a detailed justification or explanation which can be interrogated, is clearly without foundation and merely serves to bolster suspicions that you are trolling. Or ill.
But in any event, for you to have arrived at your view you must have considered the facts available to you. Therefore I would not consider it unduly onerous for you to set these out in an open, accessible manner which will bolster (or otherwise) your case.
So on you go. Put up or shut up.