It is important to keep your goal in mind. What is the purpose that you are using WK for?
It is also important to take advice from the right person. With that I don’t mean that anyone is wrong here. I certainly don’t mean to slam anyone!
But we all have different living situations, and saying that level 1-10 is very quick, might be true if you have a lot of free time, but not as quick if you are very busy. So consider the perspective, and also perhaps consider how far along the WK/Japanese journey they are. Someone at level 60 probably have more experience in how to make WK work long term than a level 5, but again, if their living situation is that they have all the free time in the world then perhaps their methods won’t work for you anyway.
So what is my experience? I don’t have a lot of time for WK/Japanese, but I have it to spend if I want. So not in the same situation as you. What I do have though is an experience with multiple long breaks and handled mostly the same, even the last one but with an addition. So this is what I’ve done:
I’ve taken extended breaks several times without vacation mode:
Each time I just worked through the reviews, doing perhaps up to 100 reviews a day until I had reduced the pile to zero. However I did one reset recently, but let me explain why:
Level 31-33 were done very haphazardly for me. I was moving internationally, taking long breaks multiple times in the middle of those levels and in general knew that I hadn’t really learnt those kanji well at all, since I was always confusing them with other kanji.
So I reset 3 levels, not because of reviews, but because I knew I didn’t know the levels well. In fact, that reset is hiding that I had over 6 months of reviews piled up and even after reseting three levels I had just under 1000 reviews that I worked through over a couple of weeks in May.
I also reset because it would allow me to try for 30 levels in a year, which is quite a bit faster than I’ve done before. (I did my first 10 levels over 206ish days, and the next 20 over 377 days.) In fact I just counted that out. And as I said, that hides over 6 months on level 33 where I was before my reset.
And even with all this, I have done it this way because I know how I learn best. I do things in ways that aren’t recommended by some but that I know works for me and my goals. Do you have previous experience from learning that you can use here to help you with the decision?
I don’t think any of us can tell what would be best for you. In the end only you will know, but one thing is for sure. You can’t undo a reset, which is important to remember, but also don’t let it stop you from doing it if you determine it is the best option for you.
Good luck with finding the path for you!