After Profitable, do you still build backlinks?

Yes, even if that specific page/post is doing well there is always room for growth! It's much like a business owner who is already making money off his/her business, do they settle, or do they want more?

Once your business is ranked and profitable, maintaining existing backlinks is crucial. However, continuously seeking new ones can bolster authority, adapt to algorithm changes, and fend off competitors. It's about sustaining momentum and staying ahead in the digital landscape.

Yeah you never really stop building backlinks to be honest with you.