The Comment-to-Content Method: Turn Your Best Comments Into Your Best Content
Amplify for Advisors Issue 055
I left a comment on a LinkedIn post last week about agentic AI and whether back-office workflows are about to get automated. His post was way more technical than anything I’d normally write about, but I had a thought about the content side of it that I wanted to add.
So I wrote a two-sentence comment about how most advisors are still using AI one prompt at a time with no context carrying forward between sessions, and how the firms that connect their voice and compliance rules into one workspace are going to be in a pretty different spot a year from now.
It took me maybe 90 seconds. I didn’t think about it much after I posted it.
Then a few days later I didn’t want to write about what was on my content calendar, so I was trying to figure out what to write for my own LinkedIn post. And I realized the comment I’d already left was better than anything I was trying to come up with from scratch.
That two-sentence comment became the foundation of a full post. And it took me about five minutes to expand it because the thinking was already done.
The Content You’re Leaving on Other People’s Posts
This is Part 3 of our “Your Best Content Is Already Written” series. In Part 1, we talked about bringing old published content back to life. In Part 2, we talked about finding content in conversations you’ve already had. Today we’re closing the series with what I think is the most overlooked content source of all.
The comments you leave on other people’s posts.
Not the comments you receive. The ones you write.
Think about it. When you leave a thoughtful comment on an industry leader’s post, you’re doing something most advisors never do when they sit down to create their own content. You’re reacting to a real idea. You’re adding your perspective. You’re writing something specific instead of trying to come up with something from nothing.
And because you’re responding to someone else’s thought, you’re not staring at a blank screen. The prompt is essentially already there because the other person wrote it.
Why This Works at Any Audience Size
This is the part that makes the Comment-to-Content Method different from most content advice.
Most strategies assume you already have an audience. “Look at what your readers are saying.” “Check your analytics.” “Find your best-performing posts and write more like them.”
That’s fine if you have engagement to work with. But if you’re an advisor with 200 LinkedIn connections and your posts get three likes (and one of them is your mom), those strategies don’t help much.
Comments work regardless of your audience size. You don’t need followers to leave a valuable comment on a post. You just need a perspective worth sharing.
And if the comment is good enough to add value to their post, it’s good enough to become your own post.
Where to Look
You probably already have a handful of strong comments sitting in your LinkedIn activity feed right now. Here’s what to look for.
Comments where you added a perspective the original post didn’t cover. If you read someone’s take and thought “that’s true, but they’re missing this angle,” and you wrote that angle in the comments, that’s a post.
Comments where you explained something from your own experience. Any time you wrote something like “I’ve seen this with my own clients” or “this reminds me of a conversation I had last week,” you were writing from a place of real expertise. That’s your content.
Comments where you respectfully disagreed or offered a different lens. Not arguments. Just moments where you said “I think about this differently” and explained why. Those comments tend to be some of the most thoughtful things you write, because you’re being careful with your words.
Comments that got replies or likes from people who don’t normally engage with you. If someone you’ve never interacted with responded to your comment, that’s a signal. Your perspective resonated with a new audience. That’s worth expanding.
Comments you spent more than 30 seconds writing. If you put real thought into it, that thought is worth more than a two-sentence comment buried in someone else’s thread.
The Prompt That Does the Work
Go to your LinkedIn profile, click “Activity,” and scroll through your recent comments. Copy and paste your five to ten best comments into Claude or ChatGPT and run this:
