According to Ki Young Ju, there is a concerning trend of certain altcoins, derogatorily referred to as 'shitcoins', expanding their number manipulation tactics from platforms like X to GitHub. This activity involves pretending to be builders while manipulating data, potentially misleading investors and traders. This highlights the need for traders to exercise caution and conduct thorough due diligence before investing in altcoins, as the presence of such manipulative practices can significantly impact market dynamics and trading decisions.