Along the lines of AHKieran I think the answer is actually
I am a common word that refers to a person.
I rarely refer to very young people – in fact, the older a person is, the more likely they are to be called me.
However, if you pick two random siblings, the younger of them is more likely than the older one to be called me.
The final answer is
formed by the words
I tried to reconstruct who came up with individual words first; which is kind of hard given the timelines and grace period edits. Apologies for any mistakes.
But if you ask me (non-native speaker here):
I found some remaining ones:
In more an English sense than a Puzzling one...
In the question there is the keyword:
That means if 100% true, then the statement is true. else it is false, even it is true 99%.
In other words:
Hope this helps!
An eccentric possibility is an
My suffix is short for the place where you are,
My infix for who,
My prefix for where you can learn about what's mistaken for me in a crowd at least two.
To echo a riddle that's greatly renowned ... I come in rounds.
This puzzle also features the answer three times:
For #2, a pile of not-really-opposites (but I don't find the "official" answer very convincing either, I'm afraid):
(Note: I am using computer assistance, which may be disqualifying depending on @Trenin's intentions.)
The following were found when I was under the misapprehension that #2 was looking for LL rather than LI. The first is mostly a joke....
Here are 22 names with 79 changes:
[EDITED to add: It's been pointed out in comments that I carelessly included one user who is slightly below the 3k mark. Here's how to fix that up. The number of users goes down by 1; the number of changes is unaltered.]
These are more or less all the short names of 30k+ users that seems like they have much chance of ...
I think the Word of the Day is
As hinted at by Chowzen and suggested by Bard it seems like
My extreme wisdom was extracted from this common herb.
A mechanic-turned-veterinarian who only works on arboreal primates.
An pivotal, voiceless piece of music.
I can't believe how small her makeup case is!
My computer is on its last legs.
The doorbell was ...