Yes it could go both ways.

My point was that Domain Tools showing how many domains someone owns (accurate or not) is not so benign.

Look at this:
“How to Search for Domain Name Holders and Patterns of Registration”

“What follows is a guide on how to search for this information, particularly in cases where the registrant in question has registered multiple domain names.”.

“Bulk registration of domain names is one of the hallmarks of cybersquatting and is accordingly listed as one of the enumerated circumstances evidencing bad faith under the UDRP.”.

“Unfortunately, the process for discovering this pattern (of registrations) is not as simple as one might hope.”.

Source:
http://cyber.law.harvard.edu/udrp/process.html#search

Now it’s quite easy to do that research and see without any cost of money or time how many domains someone owns.

Pay the freight and you get to see what the actual domains are.

Bottom line:

If you are a Respondent in an UDRP dispute, there is absolutely no advantage to you that the Complainant knows how many domains you own.

But that info could work to the advantage of the Complainant depending on who the Panelist(s)is/are.

There are lots of people who think it’s wrong for someone to own lots of domains.

Unfortunately, some of those people are UDRP panelists.

Patrick

Andrew,

I disagree that knowing the number of domains via Registrant Search is unharmful.

I have seen it many times where a Complainant in a UDRP tries to use the fact that a Respondent owns many domains against him.

“Respondent owns 75,577 domains. Respondent registers domains in bulk which is evidence
Respondent has no rights or legitimate interest in the disputed domain”.

Or something like that.

The Complainant does’t need to pay for the report.

Just seeing how many domains is attributed to someone is ammunition enough.

Patrick

[...] domain blogosphere reference goes to Andrew by at DomainNameWire.com for his tips on using DomainTools.com. Andrew points out five different features of the site and [...]

[...] domain blogosphere reference goes to Andrew over at DomainNameWire.com for his tips on using DomainTools.com. Andrew points out five different features of the site and [...]