Yes. Ultimately nearly any tool can be used for good can also be used nefariously.

Internet infrastructure data is inherently open. I'm just presenting it in a more useful way. So any motivated actor can access it regradless.

In any case, exposing your IP during these lookups is bad operational security for them. So I would assume they'd prefer not to use Wirewiki.

All that to say: I don't feel conflicted about making these tools.