[db-wg] RIPE abuse finder

Hello!

Recently our company started to receive a lot of strange complaints 
relating to network we don't operate or route. I fount these complaints 
was sent to points of contact got by RIPE abuse finder.

This is the fresh sample of it:

IP: 31.133.58.219

Output of RIPE abuse finder:

https://apps.db.ripe.net/whois/use-cases/abuse-finder.json?source=ripe&primary-key=31.133.58.219

{
		"abuse-resources":{
		"service":"abuse-finder",
		"link":{
		"xlink:type":"locator",
	 
"xlink:href":"http://apps.db.ripe.net/whois/use-cases/abuse-finder.json?source=ripe&primary-key=31.133.58.219"}
		,
		"parameters":{
		"primary-key":{
		"value":"31.133.58.219"}
		,
		"sources":{
		"source":{
		"name":"RIPE",
		"id":"ripe"}
		}
		}
		,
		"irt-objects":null,
		"abuse-mailbox-attributes":{
		"attribute":{
		"name":"abuse-mailbox",
		"value":"support at netassist.ua"}
		}
		,
		"objects-with-abuse-related-remarks":null}
		}

whois -B 31.133.58.219
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Information related to '31.133.32.0 - 31.133.63.255'

inetnum:        31.133.32.0 - 31.133.63.255
netname:        DIDAN
descr:          FOP Trubnikov Valeriy Muhaylovich
country:        UA
org:            ORG-FTVM1-RIPE
admin-c:        TA3197-RIPE
tech-c:         TA3197-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-lower:      RIPE-NCC-END-MNT
mnt-by:         TRUBNIKOV-MNT
mnt-routes:     TRUBNIKOV-MNT
mnt-domains:    TRUBNIKOV-MNT
changed:        hostmaster at ripe.net 20110415
changed:        hostmaster at ripe.net 20110415
source:         RIPE

organisation:   ORG-FTVM1-RIPE
org-name:       FOP Trubnikov Valeriy Muhaylovich
org-type:       other
address:        86156, Ukraine, Makiyivka, Zeleniy, 60/182
admin-c:        TV1866-RIPE
tech-c:         TA3197-RIPE
e-mail:         core at didan.org
mnt-ref:        TRUBNIKOV-MNT
mnt-by:         TRUBNIKOV-MNT
changed:        core at didan.org 20110414
source:         RIPE

person:         Trubnikov Andrey
address:        86156, Ukraine, Makiyivka, Zeleniy, 60/182,
phone:          +380623277657
nic-hdl:        TA3197-RIPE
changed:        core at didan.org 20110331
mnt-by:         TRUBNIKOV-MNT
source:         RIPE

% Information related to '31.133.48.0/20AS52091'

route:          31.133.48.0/20
descr:          FOP Trubnikov Valeriy Muhaylovich
origin:         AS52091
mnt-by:         TRUBNIKOV-MNT
changed:        core at didan.org 20110423
source:         RIPE

% Information related to 'AS52091'

aut-num:        AS52091
as-name:        TRUBNIKOV-AS
descr:          FOP Trubnikov Valeriy Muhaylovich
org:            ORG-FTVM1-RIPE
import:         from AS47694 accept ANY
export:         to AS47694 announce AS52091
import:         from AS21189 accept ANY
export:         to AS21189 announce AS52091
admin-c:        TA3197-RIPE
tech-c:         TA3197-RIPE
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         TRUBNIKOV-MNT
mnt-routes:     TRUBNIKOV-MNT
changed:        hostmaster at ripe.net 20110415
source:         RIPE

organisation:   ORG-FTVM1-RIPE
org-name:       FOP Trubnikov Valeriy Muhaylovich
org-type:       other
address:        86156, Ukraine, Makiyivka, Zeleniy, 60/182
admin-c:        TV1866-RIPE
tech-c:         TA3197-RIPE
e-mail:         core at didan.org
mnt-ref:        TRUBNIKOV-MNT
mnt-by:         TRUBNIKOV-MNT
changed:        core at didan.org 20110414
source:         RIPE

person:         Trubnikov Andrey
address:        86156, Ukraine, Makiyivka, Zeleniy, 60/182,
phone:          +380623277657
nic-hdl:        TA3197-RIPE
changed:        core at didan.org 20110331
mnt-by:         TRUBNIKOV-MNT
source:         RIPE

whois -B TRUBNIKOV-MNT
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Information related to 'TRUBNIKOV-MNT'

mntner:         TRUBNIKOV-MNT
descr:          FOP Trubnikov Valeriy Muhaylovich
admin-c:        TA3197-RIPE
upd-to:         core at didan.org
auth:           MD5-PW # Filtered
mnt-by:         TRUBNIKOV-MNT
referral-by:    TRUBNIKOV-MNT
changed:        core at didan.org 20110418
source:         RIPE # Filtered

person:         Trubnikov Andrey
address:        86156, Ukraine, Makiyivka, Zeleniy, 60/182,
phone:          +380623277657
nic-hdl:        TA3197-RIPE
changed:        core at didan.org 20110331
mnt-by:         TRUBNIKOV-MNT
source:         RIPE

Is it a bug or a feature, and why?