Ian, I note that you disagree but provide no countervailing argument or comment.  I am not singling you out; this is a problem at  large with many of the users of this site.

You could be in favour or increasing, lowering or doing something entirely with regards to corporate income tax.  You may be right, you may be wrong; however the readers of these posts will never know.
Your opinion may change some peoples thinking or it may not but at the very least it will help to understand your thinking,  encourage debate and examine trends.

I think that the disagree emoji should be used sparingly and only if the person disagreeing puts forth their views for consideration.