In theory, teemos attack animation and range, along with his average early game attack speed, means if darius goes headlong in his direction, if teemo attacks, darius will be in range for his grab before teemo can animation cancel it.
And I don't play much ranked because it stresses me out. Numbers' diamond buddies played with me once and said I play plat level, and my hidden elo routinely matches me against golds to diamonds with the odd challenger here and there, but I'm still only silver, so I don't have the credentials to back up the matchmaking.
Regardless, I don't need to be ranked high to present a logical argument. It'd be easier to take Toon seriously if all of his responses to somebody disagreeing with him weren't just "you aren't doing it right then". If you bothered to explain your rationale, people would take your opinion more seriously. A dumb argument or, worse, no argument, doesn't contribute anything and sounds condescending. I took the time and liberty to explain how Teemo gets countered and scales, along with his redeeming qualities and generally agreed upon play style, and your response was "then those Teemo players suck". You refuted nothing, just passed it off like it was all irrelevant because you are god king knowitall about Teemo. And then you got mad when other people then brushed you off. If you want your opinion on something to be taken seriously, take the time to present it seriously. People may still not agree, but they can at least respect your opinion.
As an example, a common response I get from Teemo lovers is that winning lanes is the easiest way to carry in solo queue because people don't know how to come back from losing lanes. Since Teemo wins his lane almost universally against melee, Teemo is strong. And I disagree with that sentiment, but I can at least respect their opinion because they've bothered to rationalize and explain it.