I feel like "be consistent" gets repeated so much that nobody really questions it.
Obviously disappearing for weeks is bad. But posting all the time does not mean much if none of it is memorable. Some people post every day and blend into the background. Other people post less, but when they do, it actually lands.
So maybe the real issue is not inconsistency. Maybe it is being consistent without saying anything worth noticing. Do you value posting often more, or making fewer posts that actually have some signal?