Well, they source where they find their information. So I guess we should look at their results and see if they are correct.
I have done exactly that on matters of law and history that I know personally or through research and almost without fail they are guilty of "pumping up" their sources. They almost always exaggerate what the source is saying to support their point or downplay or differentiate the source from the claim if it does not support their answer.
Another thing tricky that snopes does is slightly change the question poised by the urban legend so that it becomes false or unverified thus the people browsing it thus think is false when it was really true.
Let's look at a common urban legend: Al Gore says he invented the internet.
This should be listed as Misleading but is instead listed as false.
Al Gore went on Wolf Blitzer and said that he "took the initiative in creating the internet".
They go on to excuse Gore's own words this way:
To claim that Gore was seriously trying to take credit for the "invention" of the Internet is, frankly, just silly political posturing that arose out of a close presidential campaign.
The fact that it was a big lie, misstatement or deception aimed at old people who did not understand how a complex computer system works doesn't mean it wasn't false. Also because it was used by his political enemies doesn't make it false.
They then use this odd logic:
(To those who say the words "create" and "invent" mean exactly the same thing, we have to ask why, then, the media overwhelmingly and consistently cited Gore as having claimed he "invented" the Internet, even though he never used that word, and transcripts of what he actually said were readily available.)
They claim that it is proof that 'create' and 'invent' are not synonyms that the media only used 'invent' and not 'create', a statement that would seem to prove the opposite point (not backed up by facts or citations).
Snopes makes an analogy to Eisenhower:
If President Eisenhower had said in the mid-1960s that he, while president, "took the initiative in creating the Interstate Highway System," he would not have been the subject of dozens and dozens of editorials lampooning him for claiming he "invented" the concept of highways or implying that he personally went out and dug ditches across the country to help build the roadway. Everyone would have understood that Ike meant he was a driving force behind the legislation that created the highway system, and this was the very same concept Al Gore was expressing about himself with his Internet statement.
This is not proof of any kind, merely his personal opinion using analogy.
Except it isn't analogous.
Because Eisenhower never said he invented the interstate or took the initiative in creating the interstate.
Because today the system is known as the Eisenhower Interstate system. ("I invite you to explore this Web site devoted to the Dwight D. Eisenhower System of Interstate and Defense Highways on its 50th anniversary. From the start on June 29, 1956, the Eisenhower Interstate System has been known as the Greatest Public Works Project in History."- J. Richard Capka @ https://www.fhwa.dot.gov/interstate/homepage.cfm)
This is also opinion without citation that would support that he didn't "take the initiative in creating the internet" but it is treated as proof the claim is false:
Whether Gore's statement that he "took the initiative in creating the Internet" is justified can be a subject of debate, as statements about the "creation" or "beginning" of the Internet is difficult to evaluate because the Internet is not a homogenous entity (it's a collection of computers, networks, protocols, standards, and application programs), nor did it all spring into being at once (the components that comprise the Internet were developed in various places at different times and are continuously being modified, improved, and expanded).
They do cite to a 2000 letter by Kahn and Cerf, written during the dust-up. However, the content of the letter gives great insight into the process of the creation of the internet and it is clear that he was a political pioneer and early adopter but he didn't "create" anything nor was it an "I" but a "we".
If they had listed the UL as: Al Gore says he took the initiative in creating the internet, then it would have been listed as TRUE. But they carefully molded the question so that it can be claimed to be FALSE.
Hope this helps.