An amateur is someone who is still learning, a hobbyist, someone who loves the process regardless of outcome and isn’t doing it professionally.
An amateur (or tinkering hobbyist) is never doing a terrible job. They’re simply doing it, and that’s the whole purpose. There’s no criticism.
It’s the amateur masquerading as a professional who is in danger of being labeled terrible.
When you tip into calling yourself a professional, it’s a posture of standing behind your work. Professionals put themselves up for criticism, and will get compared to others in the field. In every field there’s an unspoken undefined level that people believe you’re at if you advertise yourself as a pro. If you aren’t to that level, you might not actually be terrible…but the gap between consumer expectations and reality might get you that label.
»» If your intent is to go from amateur to professional, be upfront about what you can offer and what they can expect.