Good Day to you, nelson soares! How's it going?
If you will permit me, I would counsel you to have patience. First of all, assuming good faith, x, y, z persons, themselves, may not see their remarks as irrelevant to your hub. They may see themselves as offering a dimension to the general topic that they feel might benefit your perspective.
Secondly, and speaking for myself, I get so few comments on my hubs that I am grateful for any feedback that does come my way.
Thirdly, try engaging what you think of as irrelevant remarks anyway. You might get a fruitful dialogue going.
Take it easy. :)