You have to be careful when reporting people too. Just because you see a bunch of emotes in chat doesnt make it "spamming". Here's a example that happened to me, kinda. I went to do the FATE in The Tempest with a new FC mate, so I could meet them. When it was over we stayed and chatted some. Now our talk was through tells, but we did do some emotes at each other, mostly me because I was showing him my custom emotes. Now there were some stragglers on the platform, and one came up and said something along the lines of "that's harrassment" then flew away. It left me and my fellow FC member very confused.
If the same emote is repeated over and over again then yes that's spamming. But if several emotes are used one after the other odds are they are part of a conversation. And if you report someone for that, it could be viewed as you doing the harrassing.