Explanatory commentators need a lot. For example, they are often hired to revive "quiet" topics on forums or to draw attention to individual blog posts - in such cases, you need to not only write short texts, but often respond to yourself or other participants. As practice shows, one commentator can attract dozens of additional visitors every day. And the more visitors, the more advertisers will be interested in this resource. Commentators often turn to manufacturers of various products, who expect to draw attention to their products in this way - which will need to be mentioned in various discussions, citing many benefits and strongly recommending making a purchase. It can be electronics, clothes, computer games, books and more. This is often the best way to promote new categories of products that are not effectively promoted in the usual way.