I think that since things like this are happening, it's enough to remind people on Hive that Blurt exists. Especially in tags like: splinterlands. If downvoters continue their politics in this style, they will come themselves. Splinterlands is not connected to Hive as far as I know when it comes to tokens, but only to Hive engine. So for users it doesn't matter.

You can also find the creator and convince him to allow logging into Splinterlands also using Blurt and buying cards for Blurt. It shouldn't be very difficult.