[aprssig] Valid destination address in APRS packets?

[James Washer]

While looking at traffic from APRS-IS, I see about 0.5% of the packets having the form below, where the destination address seems to contain the "path" rather the destination/software_version/mic-e/etc. 
 
Is this a "legal" use of the destination address?

Is this perhaps a hickup where the sender left the destination address null?

thanks

 - jim

p.s. Sorry about resending this... but I thought my orginal "subject" was not clear

KB0VKT-2>WIDE1-1,KB0VKT-2,I,qAC,KB0VKT-2:=I7`(*6L!]&  BMntr 146.9100 KB0VKT-2>WIDE1-1,KB0VKT-2,I,qAC,KB0VKT-2:;echolink2*020519z4506.42N/09502.59Wr146.46 Willmar MN Usa Node 184003                          |
KA5WRG>WIDE2-2,qAo,WA8EFC:=3523.05N/09725.77W-Duane Angles: dangles1 at cox.net 
KA5WRG>WIDE2-2,qAo,WA8EFC:@161648z3523.05N/09725.77W_135/000g000t073r002p006P002b10213h84/Weather VE7IMD-1>WIDE5-5,qAo,VE7DID-1:@161649z4901.09N/12305.12W_022/000g000t065r000p000P000h65b10168wDAV
KB0VZQ>WIDE2-2,W0APR-3,qAR,N3WNZ:@161623z3842.05N/09317.07W_055/006g010t079r000p020P001h78b10187l009.DsVP             KD7YOH-1>WIDE2-2,qAR,KD7NM:=4746.58N/12203.72W- {UIV32N}