Long list of MAC addresses in knetworkmanagerrc

[Timothy Murphy <tim birdsnest maths tcd ie>]

For some reason I have an ever-increasing list of HardwareAddresses
in .kde/share/configs/knetworkmanagerrc:
---------------------------------------------------------
[General]
Version=0.1

[Network_IVR6bcog1w6jLVqS]
ESSID=vodafone
Encryption=none
HardwareAddresses=00:13:19:CF:A4:F0
Timestamp=2007,1,8,17,23,27
Trusted=true

[Network_K7Mmc3x5K5gy60kl]
ESSID=dd-wrt
Encryption=none
HardwareAddresses=00:16:B6:DA:56:B4,02:02:2D:4A:52:80
Timestamp=2007,1,15,20,37,23
Trusted=true

[Network_Se49dWJiqc89dCCd]
Cipher=2
ESSID=maths.tcd.ie
Encryption=WEP
HardwareAddresses=02:02:2D:4A:52:80, ,3A:08:DE:53:47:2A,
02:00:2D:CC:03:73,FE:31:21:1D:95:16,02:00:A7:0D:89:B2,02:00:3C:4D:12:F2,
32:01:B3:2E:72:6A,02:00:0D:2F:23:90,02:00:F0:A4:DE:1B,02:00:B9:E6:97:59,
02:00:C6:5B:E8:E4,02:00:6F:62:41:DD,02:00:4A:14:64:AB,02:00:97:F5:B9:4A,
02:00:73:DD:5D:62,02:00:BA:77:94:C8,02:00:90:1F:BE:A0,02:00:EC:36:C2:89,
02:00:0F:56:21:E9,02:00:EA:78:C4:C7,02:00:6A:9C:44:23,02:00:99:49:B7:F6,
02:00:61:3E:4F:81,02:00:C3:0F:ED:B0,02:00:49:5E:67:E1,02:00:C8:33:E6:8C,
02:00:66:C2:48:7D,02:00:BA:EF:94:50,02:00:FD:41:D3:FE,02:00:6A:87:44:38,
02:00:0A:0D:24:B2,02:00:B4:20:9A:9F,02:00:B1:FE:9F:41,02:00:81:BB:AF:04,
02:00:7C:F8:52:47,02:00:C3:4D:ED:F2,02:00:84:7F:AA:C0,02:00:45:94:6B:2B,
02:00:72:2E:5C:91,02:00:08:7D:26:C2,02:00:D2:B2:FC:0D,02:00:DF:22:F1:9D,
02:00:57:62:79:DD,02:00:9A:F7:B4:48,02:00:34:54:1A:EB,02:00:0B:0D:25:B2,
02:00:24:9E:0A:21,02:00:AA:58:84:E7,02:00:C0:91:EE:2E,02:00:9C:02:B2:BD,
02:00:ED:DB:C3:64,02:00:29:B8:07:07,02:00:0D:50:23:EF,02:00:31:69:1F:D6,
02:00:DF:9A:F1:25,02:00:6E:D2:40:6D,02:00:1D:67:33:D8,02:00:A2:C9:8C:76,
02:00:C9:BB:E7:04,02:00:A3:6D:8D:D2,02:00:9A:3A:B4:85
KeyStored=true
Timestamp=2007,1,14,2,26,18
Trusted=true
---------------------------------------------------------
[I've split the line of addresses.]

Is this normal?
Can I trim the list,
or even delete the file and start again?

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland