I can tell you that if you stick around much you come to a point where it doesn’t matter:
I realize this is to do with familiarity but since a level can be gained in a few minutes, really, IMO (yours may vary) it’s not much, though it does seem like more when you’re new.
There are always things to do, such as crafting a few materials you have laying around or maybe visiting HOST’s portal planet (one time only ofc) to get rid of it if it’s bothering you.
It has another name also, “The Reaper Buff”
Hmm I’ve had games that take from your existing XP, take levels off of you, leave you lootable to other players, or just disappear everything you had on you entirely leaving you as a ghost.
If you’ve never been stuck with any of those, I can see how this would seem worse to you than it does to many other players. When I was new I was just happy to not be set back by it. Since I found out it won’t stack I haven’t been bothered by them any more.