It's just kind of the way of things, unfortunately. Unless a story is being professionally published there's never really any guarantee it'll be seen through to fruition, and even sometimes that's not a guarantee lol.
I don't mind giving new authors a try even without a track record honestly- as long as they put out content I enjoy I'll check it out and ride it out while it lasts. What worries me more is typically when the author has a track record that's less than stellar- it's one thing to not have work under your belt, but another to either have tons of series that you start and don't push forwards, or get stuck in reboot loops all the time, etc. Doesn't mean you shouldn't follow and support them anyways, but it's something to be weary of.
One of my favorite indie authors on Tapas is like this- their first series that they uploaded here anyways was really cool, had fun characters and an interesting plot. Took a while to get going as it was a long-form comic but whatever. Just as it was about to hit its stride with the first main plot point the author went on hiatus. No problem, I get it! When they returned though they ended up starting a new series on the side, leaving the other one stopped randomly in the middle of chapter 3 or 4. I decided to check out the new story and it was pretty good so I stuck around there too. Author took another break and came back and started yet another new story, leaving the previous 2 in limbo... At that point I opted not to subscribe and instead just periodically check in on their page and follow their social media lol. Still love their art but my confidence in their ability to commit to a story has started to wane And they're always the beginnings to these big long stories so it's extra jarring when they just stop early on before anything has even really happened... I'm a proponent of at least wrapping up the arc or chapter before leaving a story haha.