There's literally no way this could impact negatively on the Outerra devs.
Hi , it can impact if the files are hosted here only you are right .
However , it has also a general impact of "Outerra is place were stolen models are used and allowed to be shown in forums " in additon Model makers do not like to see someone elses work used this way and fear for there own Intelectual Property , very loosely it can be said that because these stolen model and media shown in Outerra and this attarcts people here who then buy Outerra because of it , then the Models were used for commercial use .
I have seen before very heavy legal procedures from Big international company , its not a joke to mess with them , even the time and stress dealing with these things can have Impact on small companies.
However it seems Levi accepted this and now we all put good Creative commons liscence links
( just need to establish his GTA buildings legality i think .