Paul uses exaggeration when he speaks of some people forcing others to obey rules as if they were forcing them to be slaves. AT: "makes you follow rules they have thought of" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-hyperbole]])
Paul speaks of the super-apostles' taking people's material resources as if they were eating the people themselves. AT: "he takes all your property" (See: [[rc://en/ta/man/translate/figs-metaphor]])
A person takes advantage of another person by knowing things that the other person does not and using that knowledge to help himself and harm the other person.
"I shamefully admit that we were not bold enough to treat you like that." Paul is using irony to tell the Corinthians that it was not because he was weak that he treated them well. AT: "I am not ashamed to say that we had the power to harm you, but we treated you well" (See: [[rc://en/ta/man/translate/figs-irony]])