Yes, this one is totally fine. The instance https://spinster.xyz/ on the other side is operated by nostr:nprofile1qqsfxfs52ud0ewk569apj8hzs83ea6amgxunlty0mpuzjc32avgj7ngpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszxrhwden5te0dehhxerjd9mx2tnpwpcz7un9d3shj7xdqzv & nostr:nprofile1qqsqgc0uhmxycvm5gwvn944c7yfxnnxm0nyh8tt62zhrvtd3xkj8fhgprdmhxue69uhkwmr9v9ek7mnpw3hhytnyv4mz7un9d3shjqgkwaehxw309aex2mrp0yhx6mmnw3ezuur4vghsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshs5p7jew. What you need to do is to check if the instance would accept content from Nostr.