You now can export and import your settings in two clicks in the settings menu, maybe you should consider moving elsewhere? Lemm.ee and sh.itjust.works are usually good choices
I understand your issues, I truely do. I still occasionally hit the downvote only to remember, oh yeah disabled. If I feel strongly enough I might reply or just go about my day. If it is against the rules then I'll report it (or delete it as I'm the admin)
We have the new Hide feature which I'm sure will be useful if there is content that you don't want to see, this is still in beta so I doubt any mobile apps have it sorted yet.
At the end of the day there is still too many people who view /All and downvote anything they don't like. They don't bother to find communities that interest them and downvote the "other side" of a discussion.
Unfortunately the landscape of policing downvote abusive behaviour has not changed since my last comment 8 months ago.
I hope you understand, and if you do want to swap to another instance there is an export feature that will help make your swap easy!