Author here. FWIW I wasn't intending this to make it onto HN, having posted about this on Lemmy looking for beta testers. The current version of the app is very much a preview. There's much further work to be done and this will include as far as possible ensuring Bitmagnet is a "good citizen". The suggestions made on the GH issue look largely feasible and I'll get round to looking at them as soon as I can.
The issue and my response on GH: https://github.com/bitmagnet-io/bitmagnet/issues/11