You don’t want to be too rough on it. There’s electrical contacts that can get blocked by dust, lint, and crap, so cleaning helps, but the contacts themselves aren’t that thick, so you don’t want to wear them down too much while cleaning. A cleaning solution helps loosen up everything with less force and a softer brush/pad is less likely to knock bits of contact off.

So just be careful because that brush might be like blowing in nintendo cartridges (clearing dust but leaving saliva specs that would wear the contacts), where it helps in the short term but makes things worse in the long term (resulting in more blowing and an acceleration of the process).