Update metadata and BC

Author: btcdrak

bip-reservedbits.mediawiki

@@ -5,7 +5,7 @@
   Comments-Summary: No comments yet.
   Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-????
   Status: Draft
-  Type: Informational
+  Type: Standards Track
   Created: 2018-03-01
   License: BSD-3-Clause
            CC0-1.0
@@ -41,7 +41,11 @@ https://github.com/btcdrak/bitcoin/commit/d12516e136d4a8952904a13eedc9f4225f35dc
 
 ==Backwards Compatibility==
 
-This proposal is backwards compatible, and does not require a soft fork to implement.
+Non-upgraded nodes will interpret the reserved bits of this proposal as signals for soft forks, and may additionally activate the warning system for unknown soft forks.
+
+This proposal does not require a soft fork to implement.
+
+At the time of writing no known soft forks are pending using any of 16 bits reserved in this BIP, and given that a non-trivial percentage of the  hashrate is already using making uses of those bits, future soft forks SHOULD NOT utilise those bits for activation sinalling.
 
 ==Acknowledgements==