Researchgate do not publish any paper. It will just as pre-print with no significant

Asif - you can upload your unpublished paper to RG as a 'pre-print' - but it only exists there as an 'interest' paper for those that want to read it or follow it. It would not be officially published or citable and have no DOI number - and RG does not have its own specific journal that you can publish in. It is not a publishing house or company.

May be that will be a good future consideration to have journal of RG to publish original papers that aren't especially appreciated by many ongoing journals.

It would be brilliant idea if RG publish their own journal, but as Dean Whitehead said they not a publishing house, unless of course they decide to have an off-shoot interest, but in what discipline?

Yes, as an unpublished version; but researchers will not be able to take a quote from this version.

Researchgate do not publish any paper. It will just as pre-print with no significant

My first answer to the 2nd question is obvious: RG is not a publishing house, hence, it doesn't maintain any journal.

As regards the 1st question, it depends on what one understands as "significance". If one refers to the importance of the content, this, obviously, is not affected if the document were or not uploaded to RG. Concerning the document visibility, such a paper cannot benefit from any indexing in databases, neither from certain archiving services, etc. Concerning the validity for administrative evaluation of somebody's achievements, it depends on the evaluator.

Concerning the quoting, for me, everybody always may (and when appropriate, must) quote whatever has ever been wherever seen/read/encountered/..., e.g., pointing to corresponding web resource (RG in particular), which is admissible reference type in common journals.

offcourse....you can publish

no you cannot publish but you can upload as a unpublished work or as a pre-print. yes it is good idea to publish here hope this idea reach to RG ..