BP_Email_Tokens::token__poster_url( BP_Email $bp_email, array $formatted_tokens, array $tokens )

	public function token__poster_url( $bp_email, $formatted_tokens, $tokens ) {
		$activity = isset( $tokens['activity'] ) ? $tokens['activity'] : false;

		if ( empty( $activity ) ) {
			$user_id = isset( $tokens['commenter.id'] ) ? $tokens['commenter.id'] : false;
		} else {
			$user_id = $activity->user_id;
		}

		if ( empty( $user_id ) ) {
			return "";
		}

		return bp_core_get_user_domain( $user_id );
	}