Between 1 and 3 tacos.
3 maximum and here's why:
the SAAS has 2 parts: in the first part the system identifies anonymous visitors and provides their personal and corporate LinkedIn profiles; in the 2nd part it creates and executes a communication campaign with the identified person.

I assume that Leadsourcing nailed the 2nd part because such campaigns are very logical and mechanical and many apps do that perfectly. I never got to that 2nd part and so I give them the benefit of the doubt.

What stopped me from going all the way? I was taken aback by the results of their AI-guessing who the visitor is. Yes, Leadsourcing makes a high-probability guess regarding the visitors and in my case the guesses (at least those that I checked) were wrong.
Another disturbing issues were multiple mix-ups in the report: for example, the company of the visitor was shown as RDNC but the link to the corresponding LinkedIn profile pointed to US Dept of VA Affairs.
Here's another: the company is identified as Star Properties, a Real Estate management co in NW while the LinkedIn profile shown was Star Properties company in Hong Kong -- it's inconsistent and thus one of them is definitely wrong.
The same goes for personal LI profiles and guessed email addresses.
That was enough for me to stop before creating my communication campaign with potentially misidentified strangers.