Noobs and trolls aside, the general consensus is that the Tiger in its current state is not worth investing in. I don't see anything wrong with that consensus nor do I think some huge buff is needed. I think a slight buff in performance or a shift to a command tank role for both Ost and OKW variants would turn it into a viable choice in the meta.
I like the notion of shifting the standard OST Tiger variants to have some form of the OKW command tiger buff