Guess who has been deleting every concept right after building it?
That's right. Me!
Yep, I am super dissatisfied with anything I build. I don't like the shape, the dimensions, the paneling, the lack of paneling. I am super picky, and my lack of building skills doesn't help. At all.
wh... what...
I believe the best is to understand that the important thing is so long as the other users like the concept, and maybe eventually put into use, you should be satisfied. Because that's the whole point of building concept stuff, to demonstrate that these mechanism or the modded part works like magic, mainly the function, and that, aesthetics don't matter.
.
So if you feel that you can't make something that look good, maybe you are a perfectionist, accept the fact that it won't look good after all but just publish it, and forget it instead of deleting it, so that you can have comments and upvotes, and even seeing someone use your concept for something else. If it bothers you, do something else to distract that thought.