There is no maximum limit of followers and likes you can get, however it is necessary that other users voluntarily accept to interact with your post or profile. Thus, the maximum amount to be obtained depends on the number of people interested in following and liking you.
The amount you can receive is directly tied to your coin balance and the offer you make per interaction. Requests with higher rewards attract more users and are therefore completed faster. Keeping a public profile with interesting content also increases the chances of receiving interactions.
If you want to scale growth, you can combine free use with buying coins. This way, you maintain a steady flow of followers and likes without relying solely on daily exchanges.
