Most of us are here to learn and grow as writer. All comments are good (whether they agree with you point of view or not – since they vive a personal opinion and a different point of view that you may not have considered)
The only comments I can’t not stand are one line the empty comments like "nice hub”, well put” , “good read” and the rest; those comments teach you noting and I have little use for formalities and missed place courtesy that in effect is nothing more than as self-serving attempt by such hubbers to improve their own score by showing activity and participation.
I appreciate constructive criticism just as much as i like praise and I always try to leave meaningful comments. I also select good commentators as the people I will read and follow.