To add context, is a type of captatio benevolentia (“obtaining benevolence/captivating”) and as such is typically placed at the start of a discussion.
Someone uses cleuasms (I’m gonna create a word by inferring a translation) many times in a discussion. Pay attention: this unsolicited and reiterated form of humbleness can be too much. If you shouldn’t have right for a statement, apply suspension instead ;)
It’s a rhetorical device meant to captivate the audience by humility.