I'd imagine other areas around StackOverflow (SQL, R?) are fighting similar issues. I've just tried it with a question (sure enough the second newest Pandas tagged question had a table as an image), and your tool produced a nice .csv.
It would be a godsend to have a button on StackOverflow that would replace a user-uploaded image of a table with some Pandas code that constructs the same DataFrame. Currently I would have to download the image, upload it to extract-table.com, download the .csv, load it into Python, run some code to create the code-based DataFrame.
I'd consider sending people on StackOverflow to your tool if you cut down some of the steps: (1) allowing to paste in an URL of an image, and (2) producing Pandas code output that can be directly copy/pasted from the site (not having to download a csv).
For illustration: here's what the Pandas code would look like for the first example of extract-table.com:
df = pd.DataFrame( {'Name': {0: 'David', 1: 'Jessica', 2: 'Warren'}, 'Gender': {0: 'Male', 1: 'Female', 2: 'Male'}, 'Age': {0: 23, 1: 47, 2: 12}} )