What do you consider as shitcoin, shitcoins are really coin without good community support, poor trading volume on low exchange, no latest news and development on the projects and many repulsive negative news on them. You do not like a project from the name rather you perform a thorough research before investing on a project.

From the research I did, syscoin is not a shit coin, listed on high reputable exchange especially Binance and upbit with good trading volume of $1.9M, at least this value can be counted towards a better coin to buy, I wouldn't advise you to stop buying SYS, do what your gut tells you to do.