The vine will not cause insect issues particularly, but it will grow in the cracks of siding and window trim, and possibly even get into the house.  We would not recommend that you encourage it.

Try not to let the wisteria leaves survive for any length of time before you cut them off.  They are replenishing the root reserves. 
 You can try smashing the stem with a hammer or something similar, instead of making a clean pruning cut. Smashing makes it harder for the vine to regrow.

Ellen

Thanks! 
Ann

You're welcome.