Not sure this will still work in 2022, but try out @chifilter for your #chi2022 tweets!

@CHIFilter #chi2011 has begun! Follow @CHIFilter and @ reply this account for your CHI-specific tweets.

@CHIFilter Hello new followers! See you at #chi2011

@CHIFilter start your #chi2011 tweets with @CHIFilter and avoid spamming your non-CHI followers

@catgrev try the @CHIfilter! just @ reply this account for your #chi2011 tweets & avoid spamming your followers :-)

1) Follow @chifilter 2) Start your #chi2011 tweets with @chifilter 3) Profit