While as a reader, I always avoided authors who post many chapters at the same time, since it really gives a sense of overwhelm and "I don't have time to read this", someone pointed out that doing this is actually a good way to gain readers. While most of them would be silent readers, it still helps the book gain popularity and audience. So, which one do you prefer?
Personally I heard others recommend to not post all at once so you can do it chapter by chapter to get on more trending scale.
However, if you don't particular care about hitting the top trending list and just wanna put the story out there, then...why not?
Sometimes the biggest achievement you could give yourself as a writer, is that you accomplished finishing writing a story rather then just getting popular for that story (that is up to how others view your story). And even if you don't get many views, it feels good that you have pushed yourself to get your work done and out there. :)
Its an internal feeling of accomplishment.
Maybe thats why there are some stories who never got finished on SH (but there's many other reasons why they probably stopped, including real life stuff, so I could be wrong). Be more motivated to finish a story, and not just gain traction.
Reading preference - it would be nice to have lot chapters already out there. When its chapter by chapter and if its not updated as quickly (say every two weeks vs. every three days) its easier to forget and move on from the story and it takes awhile to go back into it. Plus great for binging when you're on a procrastination.
Writing preference - I write on my own time and mood. If there's a story I just wanna push out all the existing chapters I have done, I will do it. If I want take time to craft + dealing with other stuff + mood to write, then I will write a chapter by chapter for an ongoing story.
Reading and writing different. Easier to consume something (read) ina short amount of time than to create something (write).