It certainly suits it. Every bass should have a headless option. I think trimming off that triangular stub (as @binky_bass suggests) would make it even better.
I think the idea is that you hammer on a note, pull the string across into the groove slot, and pull off, all as rapidly as possible, so that it makes a brief note sort of sound, like a dink, then a sort of clack at a slightly different pitch then a donk at the final pitch. So if your playing consists entirely of dink-clack-donk then this is the invention for you.
Replace it at the earliest opportunity. Unless, of course, a room in your house has become unusable due to it, in which case you may need the services of a plumber.
I'm not much cop as a guitarist, but I would find that incredibly restrictive if I could only bend notes less than halfway to the next string. My normal vibrato would get me right to the edge. The only purpose I can see for it is to play those pull-offs which sound like somebody who can't fret a string properly slipping off the edge of the fretboard, and if you actually wanted to reproduce that sound, it would be far simpler not to fret the string properly and to push it off the edge of the fretboard.
Anyroadup, I suspect that the psychology behind collecting instruments is a variant of kleptomania and compulsive buying disorder, where there's a compulsion to expand the collection but it remains within the bounds of honesty.
But are you a hoarder or a collector? We have one room that's unusable, but that's because we're waiting for a chance to clear it out (and it's not due to the basses, and only partly because of motorcycle gear), so I am apparently a collector:
https://www.psychologytoday.com/us/blog/dirty-secret/201012/what-is-the-difference-between-compulsive-hoarding-and-collecting
I bought my car second-hand for £6k. The only times I have made money from using it have been when I was carrying a bass in it. It isn't used to earn my salary (which is more than £6k a year). Your logic is seriously faulty. But I'm not going to embark on a TimR argument, it's like nailing jelly to the ceiling.
It's often due to a bidding war. Two people both fancy the same thing, one puts in a bid, the other beats it, and then the frenzy starts where neither of them will allow the other to win it. The sense of competition outweighs rational thought.
If you've got a skeleton jack, it can always be reinvigorated simply by bending the contacts a little - something that is not part of the design brief for a barrel jack. However, a skeleton jack needs either mounting on a plate with a big hole under it, mounting on a scratchplate, or a very thin bit of wood where it comes out, so basses like Warwicks need surgery to fit one.
It's a negative temperature coefficient thermistor - there's a data sheet at https://pdf1.alldatasheet.com/datasheet-pdf/view/1132203/VATRONICS/NTC10D-15.html that tells you about the numbering system. The 10D-11 handles 3A, the 10D-15 5A, and in the middle the 10D-13 copes with 4A. I'm not sure what the implications of the lower resistance of the higher power handling versions is.
CPC Farnell do thermistors - https://cpc.farnell.com/webapp/wcs/stores/servlet/Search?st=thermistor&catalogId=15002&showResults=true&pageSize=25&storeId=10180&langId=[Ljava.lang.String%3B%403c322563&categoryId=700000067503
You'd want an NTC thermistor, 10R, that will handle at least 3A and preferably more, for example https://cpc.farnell.com/epcos/b57237s100m/thermistor-ntc-10r-3-7a/dp/RE04727?st=thermistor
or https://cpc.farnell.com/epcos/b57238s100m/thermistor-ntc-10r-5a/dp/RE04735?st=thermistor
Which variant are you talking about? I've got two GB10s, which both work fine except that for some reason the USB transfer doesn't seem to work on one of them. I can always just do a physical copy to the card if necessary. Pitch shift and slowdown work fine.
The Daily Excess once ran a Giles cartoon showing the mop-headed youth playing a guitar that was plugged into the electric ceiling light. I wrote to them to tell them how dangerous that was. That was 50 years ago or so.
Anyroadup, the seller doesn't seem to bother amending his boilerplate text - he has the same 240V disclaimer on auctions for things like knobs and hinges.