Bare stranded copper wires are crushed by the screws - as there is the possibility of settling over time they can become loose. Also, tightening a rotating screw onto copper strands can weaken them so they break off with relatively small amount of flexing.
I think it looks a little neater as well?
I've been putting together a few boxes like this for modular playing - it gives the components some protection whilst testing configs etc.
I've started using bootlace ferrules for terminating wires - as long as they are crimped properly they can be used in chocolate block or similar and not have issues.
I guess that would be your loss then? When the first request came in, I asked if it was ok to wait until payday to pay the balance and received a prompt and courteous response.
They're a preservation group, not a multi-national sales empire.
I only clean the material if it's really manky. Otherwise I just let the water based flux do its job. Most of the kits I have are well over 20 years old.
https://laisdcc.com/spare-parts/ :)
It diverts to ali express for sales - https://www.aliexpress.com/item/1005003711888352.html
If you only need one or two then a UK supplier is better but for bulk I go direct.