If you drink coffee everyday then nothing bad should happen.
You might start peeing more often or have to poop more often but other than that nothing bad should happen to you unless you have an intolerance to coffee.
Some people can be intolerant to coffee and in that case the coffee could hurt your stomach.
Coffee can also keep some people awake at night and lead to insomnia but some people sleep better when they drink coffee.
Coffee in moderation is actually healthy for your heart so your heart health will improve when you drink coffee everyday.
Yes coffee can make you poop.
Coffee does have a natural stimulant that can help or make some people poop soon after they drink the coffee.
For most people however when they drink coffee they tend to pee more because the coffee acts as a diuretic and when you drink coffee you better be prepared to use the restroom because you're likely gonna need to pee soon after.
When I drink coffee I usually have to pee around 20 minutes or even sometimes sooner after drinking the coffee.
My sister when she drinks coffee usually has to poop more often when she drinks coffee.
So for her the coffee is somehow making her poop more but for me it makes me pee more.
Decaf coffee is the most common coffee that makes most people poop for some reason but even regular coffee can make you poop as well.