i use those tonetags from time so beware :P
/lh - light-hearted
/j - joke
/ci - caring intent
/mti - mirorring tone indicators (the previous tags i've used or the tags the other person used)
/nm - not mad; /nam - not actually mad; /nqm - not quiet mad
/silly - silly..?
/gen - genuine; /genq - genuine question
/nf - not forced; /naf - not actually forced /nqf - not quiet forced
/p - platonic
/sarc - sarcastic
/lyr - lyrics (usually of a song)
/aff - affectionate
/ot - off topic
/nr - not relevant
/pos - positive intent
/neg - negative intent
/posstim - positive stimming
/srs - serious
/pl - playful
/ref - reference
/nv - not venting; /nav - not actually venting /v - venting
/nbr - not being rude
/info - information
/t - teasing
/lu - little upset; /lw - little worried
/hj - half joking; /hsrs - half serious
/icj - in character joke; /ic - in character
/neu - neutral
/nmay - not mad at you
/nsrs - not serious
/exgg - exaggeration
/m+ any tonetag = major + tonetag ex: mpos - major positive and etc
some of the tags might mix together like /plj - playful joke and etc