As an educational exericse I have a new 22.0 full node using tor onion-only. Of the 18 outbound connections, one is to a peer which offers COMPACT_FILTERS BIP 158 service. (I got the name from a list of optional node services provided here in Dec. 2019.) And here it says that a node can provide BIP 157 service by setting
peerblockfilters=1. How is BIP 158 service provided?
I'd like to provide any services that are feasible and useful. I've gathered that there would be a cost of an extra 5GB of storage (growing or static?) Other than that, any downsides to be considered?
And are these services useful only to peers connecting inbound? In about 36 hours I haven't seen any of those. I did see a few inbounds occasionally in previous days running 0.21.0. Did upgrading to 22.0 and/or the recent exclusion of tor V2 peers mean an onion-only node will have no incoming connections? And if so, does that make my BIP 157/158 questions irrelevant?