Comment 4 for bug 1767187

30 or even 20 is arbitrary, but if average preciousness is like 6 and one ware gets 200 it will badly affect balance in AI.
ALTERNATIVELY I can just cap the value for AI's purpose to 20 and no crash (result of assert) but this can gone unnoticed for people who try to manipulate preciousness.

Would you mind official upper limit for preciousness like 20?