Basically everything you place using the glitch, requires to be saved, where it would normally not be possible. This may result in corrupted save data or possibly affect your game at some point. This has however not been proven, but I just want to make players aware of being careful using glitches like this and not be disappointed if anything does go wrong.
Edit: When using this glitch to build anything outside base boundaries, I can imagine it to cause issues. Similar to how getting Base Complexity over maximum can wreck someones game. See this topic here: Over Maximum Game Wrecker Bug