For every one example of someone asking a shailah here, I can probably find you a hundred examples of people shouting back “Ask your LOR!!!!”
People post halachic questions here to see other people’s viewpoints. Nothing wrong with that. Your teacher had an extremely alarmist reaction. Nobody actually poskins from the CR. Frankly, I’ve always considered the “Ask your LOR” shouters to be a waste of space on a thread.