One misunderstanding about Emily Dickinson is that she was a frail shut-in who hid her poems in a drawer. She corresponded widely with other writers and poets, knew her neighbors well, and was known as a poet in her time despite publishing only a few poems in newspapers.
She distributed her poems through correspondence. She wanted to be read. She was DIY before DIY.
Another misunderstanding, popular in academia, is that she was a lesbian with a smoldering, unrequited passion for her sister-in-law, but there is no proof of that.
Literate people in the 19th century wrote to each other with an affection that sounds strange, intense, even infatuated today. Her letters are not evidence that she was a lesbian.
And yet another misunderstanding is that her best-known poems, the ones anthologized and shared on social media, are representative of her entire body of work. Many of those poems have been sanitized and stripped of their power. Editors have made them look more like normal "verse" by changing the punctuation to conform to convention and running spell check.
Her work was complex in every way, from her syntax and strange rhymes to her rich diction and subject choices (death, nature, psychological anguish, religious doubt, and love).
She was a powerhouse of a poet, not a dainty versifier who never got any sunlight.