Analysis of a compelling 'A!'

Across the depths of the vast internet sea,
I stumbled upon a voice so sweet, so free.
A woman with grace and an angel's song,
Her laughter a melody beautifully strong.

Enchanted by her words, my heart did sway,
I subscribed and paid to hear her every day.
Her humor, a beacon in the lonely night,
A source of joy, so pure and so bright.

Oh, what I'd give to meet her face to face,
To share a moment in a real-life embrace.
For her laughter's contagious, her spirit grand,
Listen a few minutes, and you would understand.

Her debut, a single word, birthing a meme,
A more beautiful "a!" there has never been.
If you know who I mean, then I'll say no more,
For we are the same, and she our amour.