u/funny6522

When browsing Polymarket, I often wonder if the top holders on both sides of a trade are truly worth following.

For example, it's helpful to understand the following information before making a buy "yes" or "no" decision:

- Which wallets do both sides have?

- Do these wallets actually have an advantage, or are they just lucky?

- Are they market makers/spread capture wallets?

- Are they entering early or chasing the price?

- Does their entry have sufficient liquidity to be replicated?

- Has the price deviated too far from their entry point?

Do you manually check this information before opening a position？

Or do you primarily focus on market price/order book, ignoring the quality of the wallets?

After reading people’s thoughts on wallet tracking, I’m starting to think “most profitable wallets” might be the wrong filter.

A wallet can look great on PnL but still be useless to follow if it is:

- market-making / capturing spread

- winning from one huge binary hit

- getting fills on tiny liquidity

- buying 90c consensus favorites

- making correlated bets inside the same event

- entering so early or with such size that the trade is not copyable

So maybe the better question is not “which wallets made the most money?”

Maybe it is:

“Which wallets are actually informative when they take a position?”

For people who look at Polymarket wallets, which is more useful to you:

1. a leaderboard of the most profitable wallets

2. a checker that tells whether a wallet is skilled/lucky/market-making/not copyable

3. a market page showing which side has more credible wallets before you take a position

Curious how others think about this.

I’ve been looking into Polymarket wallet tracking lately, and I’m starting to think raw PnL / win rate can be pretty misleading.

Some wallets look profitable because of one huge win. Some are market makers capturing spread, which probably isn’t copyable. Some trade low-liquidity markets where the entry price would be impossible to follow. And some “whale” wallets might just be random large bettors.

For people who actually track wallets:

How do you decide whether a wallet is worth watching?

What metrics do you trust most?

I’m not looking for a copy-trading bot. I’m more interested in how people separate real edge from lucky or uncopyable performance.

I'm trying to retrieve static frames from a video embedded on a client (hosted on another domain) and send them to my backend. My original plan was to draw the video onto a canvas and read the pixels, but the canvas gets polluted due to the cross-domain transfer, causing `toDataURL` to throw an exception.

Is `getDisplayMedia` (screen sharing) the only way without using a browser extension? While it works, having the user choose the tab to share feels cumbersome.

Has anyone done something similar before? Did you ultimately choose to use an extension? How did you obtain a reliable timestamp for each frame?

[ Removed by Reddit on account of violating the content policy. ]

我觉得通过看视频学习编程非常麻烦。起初我以为自己能应付，因为我只是看视频阶段，但当我试图停下来逐段输入代码时，我花的时间比看视频内容还长，这真的耗尽了我的热情。