LinkedIn About Section Mistakes That Hurt Your Profile

The 10 most common LinkedIn About section mistakes: (1) Leaving it blank. (2) Copy-pasting the resume objective. (3) Starting with "I am a passionate..." (4) Writing in third person. (5) No concrete achievements or metrics. (6) No CTA at the end. (7) So long it loses the reader (over 500 words). (8) So short it adds nothing (under 50 words). (9) Overlapping completely with the headline — repeating what is already visible. (10) Written five years ago and never updated. Any one of these signals a profile that is not maintained, which recruiters interpret as professional disengagement.

"Passionate professional" and its siblings — "results-driven," "innovative thinker," "dedicated team player" — fail for two reasons. First, everyone uses them, which makes them invisible. Second, they make claims without evidence, which is the opposite of persuasive. Compare: "I am a passionate marketer" versus "I grew e-mail revenue from $200K to $1.4M in 14 months by rebuilding the entire automation sequence." The second version is also a claim about passion, but it proves it with evidence rather than asserting it with an adjective. Always show, never tell.

LinkedIn About sections should be written in first person ("I") for two reasons: (1) LinkedIn is a social platform, and social contexts expect first-person voice. (2) Third-person reads as if someone else wrote your bio for you, which creates a subtle inauthenticity signal. The exception is certain executive and board-level profiles where formal third-person bios are conventional. For 95% of professionals, writing "I built," "I lead," "I help" is more direct, more confident, and more natural to read on a social platform than "[Name] is a results-focused leader who..."

Too vague: "I have experience in marketing and help companies grow" — this says everything and nothing. Fix: specify the channel ("paid social"), the industry ("B2B SaaS"), and the outcome ("3x ROAS over 12 months"). Too long: an About section over 400 words on LinkedIn will lose readers on mobile, where most LinkedIn browsing occurs. Fix: cut any sentence that does not add new information — mercilessly. Every sentence should advance the reader's understanding of who you are or why they should contact you. If a sentence does neither, delete it.

Fix blank About: block 20 minutes, write without editing, use the Hook-Proof-Authority-CTA formula as your structure. Fix copy-pasted resume objective: read the resume version aloud — if it sounds robotic, rewrite in the voice you would use explaining your career to a smart friend. Fix no CTA: add one sentence at the end telling the reader exactly what to do next. Fix outdated: update after every job change, major project completion, or skill acquisition — set a recurring quarterly calendar reminder to review.