There is some kind of a flaw in the system that apparently counts pings as chat. There was a person on reddit recently who got 4 silences/suspensions overturned by appeal, which had no chat at all (upon further investigation, it turned out to be pings).
(Note that the person got all these overturned)
If you play a ton of games daily in Storm League… I probably wouldn’t ping too much either.
This is mostly a problem for heavy users of Storm League. The average AI or QM player is not affected by the issue since reports in those modes are much rarer.