Consistency, Bah Humbug

[luckyme]

It a reasonable bet that e thread will prod an 'inconsistency' claim by a poster ( as well as the usual 'nazi' comparison). I confess that most of the time I don't see what relevance the inconsistency objection has.

Situation A has some resemblance to Situation B, yet the poster may come to very different positions on them. Any inconsistency objection would have to be based on the some universal application claim such as contradictory ones in the premises or ??

For example, what is the logical error if two separate arguments claim that it's ok to eat dogs but not ok to squash spiders?

Can somebody clarify this consistency bogeyman for me?

luckyme