I have played No Man sky and buildt in Creative mode there, its not frownd opon by others but celebrated. It mostly i beleve that its been there for a while, is accepted as help to build what u want to take as Influence to build in The normal game.
I thinks Its in The Culture of the game, eye of the beholder and the person Building. What and why they are Building.
Im Building for myself so i dont care about People using or abusing Creative mode to build what ever monstrosity (i see u Finata, Black blanket carpet half of the world) they want.
If the community wants to keep such a bias about time spend or how much they sweat acomplishing The same feat, so be it i relly dont care. Its issues that they have not me. Then do not share youre build to People that dont feel youre enjoyment, go to People that lift u up and fill youre exitment.
I think that the community is so small that there is just a few to ask for aproval, if they are negative then just move forward to youtube or other places of outlet.
I feel good farming The stuff i need to build, i would never set foot in Creative in boundless because i want to feel The grind so i get fullfilment to watch my house in all its grind, gatekeeping, money sucking, hourwaisting crafting Glory! Its self satisfying
i dont care that noone sees it, its Mine, my pressius!
Its like watching a streamer reacting to an other streamer, its zero work but i dont relly mind Creative mode in boundless. But The implementation of the mode is horrendus
they should learn from their cusin No Man Sky. Creative mode, its own mode.
I think as The game is so heavy on timer its become a “well i can do that to! But… Wait 40h when its done in The machine” And when its done u feel as if u accualy did more but an other got all The fame an fortune in creative 
Its unfair in the mind of the righteus. Its a personal feeling.
Creatvie should not be frownd apon in my mind, its to improve youre build faster. Because The same time for all that concrete to be done u could have buildt a city and figure out how to build youre Project. Less wait, more build. Because there is also The feel of reaching that Project, if it takes to long People will abandon it.
I dont think that new People would even know what Creative is and use it for their benefits, because The intruduction on Creative to The Newcommers is non existence. They Will stumble upon it 6 months later when they find their first portal and wonder why all their UI is diffrent.
Well i just think its a personal feeling why u are Building or playing boundless.
Endnote, Survival game first, Building game second for me personal. If not then i can just play Creative No Man Sky to only build, or Ark
If u dont have The Survival aspect then there is no consecuenses in the game to make it exiting (there is nothing more exiting to get hammered by a low lv lifestock and get flinged into lava) . Mobs and everything becomes obsolite and u are not affraid of anything. That would kill The game for me 
I would rather have a singel player Creative world for content creators or to try stuff out, not have it in The same Universe 