chat.privacytools.io: enable antispam module?

[Mikaela]

• https://github.com/t2bot/synapse-simple-antispam

There have been multiple complaints on abuse, e.g. https://github.com/vector-im/riot-meta/issues/306

[jonaharagon]

Out of scope & ultimately not a huge issue IMHO outside of a couple events. People usually give up after a day or so.