When you post multiple times a day, your audience has to divide their attention across more of your content. This often results in fewer likes, comments, saves, and shares on each individual post.

The pressure to create daily often leads to rushed, repetitive, or uninspired content. Instagram's AI heavily prioritizes high-quality, original, and visually appealing posts. Quantity can't compensate for a lack of value.

Your audience can get overwhelmed by too much content from a single source. This "digital fatigue" leads to users skipping your posts, muting your account, or even unfollowing you to curate their feed.

If your content isn't captivating enough to hold attention (e.g., users quickly scroll past your Reels or spend minimal time on feed posts), simply posting more of it won't help. The AI prioritizes content that commands user time.

High posting frequency combined with consistently low engagement or repetitive content can signal "spammy" behavior to Instagram's AI. This can lead to reduced visibility, or even a dreaded shadowban, severely limiting your reach.