I'm not saying that your opinion shouldn't exist, but some restraint would be advantageous.

Unless you think that statement is overly reductive, simplifying a nuanced subject to a flippant, self-indulgent remark that accomplishes nothing but ego-stroking

Some opinions provide valuable hypotheses which can promote thoughtful discussion regardless of their validity, like "A value-added tax would benefit the working class". Some opinions are hollow and useless, and serve only to make the commenter feel smugly clever for stating the obvious, like "Israelis and Palestinians should just get along".

Endless promotion of the latter is probably one of the most unnecessary uses of the Internet, muttering to oneself alone at home is a sufficient technology for that purpose.