I am sorry if people gave silly answers, or made jokes about "Bubba," but I will offer a serious thought about the concerns that may have lead to these jokes.
There are many tasks in gunsmithing which take a fair amount of practice. After you do a task the first time, you realize how to do it better the next time. After four or five attempts, your results are significantly improved, but still nowhere near the results of an experienced craftsman. Depending on the task, sometimes the results of the first few attempts are acceptable, and sometimes they are a real disappointment.
When someone asks about the tools to do a job, that is a hint that the next attempt will be their very first try. And this makes people concerned that the results of the first attempt will be unsatisfactory. This concern is amplified when the tool in question is a file, since files can do a lot of damage quickly in unpracticed hands. I think this is the underlying subject of the jokes that were made.
Note that I have no knowledge of your skills or experience, and I am not making any comment whether to sharpen your checkering. I just wanted to offer some perspective in a non-joking way.
I would also say that when someone wants to learn to do hand checkering, they are always advised to checker a piece of scrap steel before working on a gun frame. But your situation is different, so that advice might not apply. Good luck.