New York CNN — In the days after TikTok’s CEO was grilled by Congress for the first time, many TikTok users began posting about an alternative platform called Lemon8, sometimes with eerily similar language. Multiple creators described the app as being like “if Pinterest and Instagram had a baby, with TikTok’s algorithm.” Some compared it to TikTok circa 2020 and encouraged other influencers to join the app before it grows. They also asked followers to share their Lemon8 usernames in the comments. As it turned out, the app wasn’t just a random alternative to TikTok. Lemon8 is a social media…