Is Having No Social Media Presence a Turn-off in Dating?

Hi I'm 25m. I recently joined Salt and matched with three different girls, one after the other. Two of them made the first move and sent me a message. The conversations went well, we had things in common and I suggested we continue talking on Instagram because I find it more convenient. But after moving to Instagram, I found them less invested and more distant.

During our chats, they admitted they found it strange that I don’t post anything on my account and that there are almost no photos of me except for my profile picture, which made them feel uneasy. The same thing happened in all three cases.

For context, I uploaded the maximum number of photos on Salt, where my face is clearly visible, and since they were the ones who approached me, I assume they already saw what I look like. I also made it clear to them that I only use Instagram as a messaging app and that I’m very private on social media because I don’t like sharing my personal life online.

My question is would you personally consider it a turn-off or a red flag if someone has no activity on social media? I’m asking because this situation has made me wonder whether dating apps are really the right fit for me after all.