I think one of the most effective is answering posts people need help on while sourcing something that a user from the fediverse contributed. It’s not aggressive. It’s not a pitch. It’s just there so people might visit it and get curious.

Like nobody likes door to door sales people. Or cold calls. And that’s what the current approach is coming off to for people who don’t want and aren’t asking for alternatives. People who’ve felt strongly enough about leaving reddit already have. Those left don’t care.