I am all about simulating data for writing and testing code but it is customary to use actual data when doing final analysis. That really is table stakes
How do you tell if authors fabricated their research results? Sometimes: they just tell you. Read, e.g., this caption carefully. Another banger of a post by my friend Nihar B. Shah on his blog, where he found at least 20+ such #ICLR2027 submissions: researchonresearch.blog/2026/10/20/s...