Consensus addresses are not account addresses: they are derived from the validator's consensus public key (bech32(sha256(pubkey)[:20])), and gnoland-1 provides no canonical mapping to a g1 account — so no account link is shown.
Signing counts are membership-aware: only blocks this validator was eligible to sign (member of the deciding set) are counted. This is windowed signing participation for the shown range — not lifetime uptime.