For human it is easy to express the will -- "I would like this to go left, and 
this to go right", but for OOo it is hard to do.

There are only tricks and workarounds and it even works fine till the moment 
your document is going to be complex, everything slows down and it is hard to 
manage text because of all tricks you put to achieve simple goals.

For me it was formulas -- thanks to lack of multialignment you have to put all 
formulas in tables to get numbers for them. But what if I have formulas in 
tables already?

So -> this wish. Multi-alignment is needed to achieve goal by OOo built-in 
feature not by playing tricks.