How mate? They were only banned from this forum. They still offer their services and you can find them on this forum Altcoinstalk

If you don't want to use mixers, you can go for coinjoins read this thread to know more about how it functions
CoinJoin: Bitcoin privacy for the real world]
Beginner's Guide to CoinJoin

It's pretty widely assumed that coins can be traced through mixers by companies like Chainalysis.

Converting to Monero is just as easy, and actually anonymous! You don't have to trust that whatever "mixer" you're using isn't broken by governments or companies like Chainalysis.

Nothing to do with that, it's just widely assumed now that Chainalysis and governments have technology that makes them obsolete, that they can track transactions through them.

Monero is open source and only costs 1% to convert to, 2% max if you convert back, so why not be safe and do that instead?

using promoted mixers that reveal how they operate (people deposit in certain rounded amount and get out certain rounded amount) is the easiest way to get flagged as mixer used and tagged as a suspicion rating by services

however if you know of a miner who is willing to trade your coin for his fresh mined coin. you obtaining fresh mined coin without the fluff of mixer rounded mount tagging is better for you

benefits:
a. the only taint you have is 1 spend after coin reward
b. you can the claim to tax office you obtained coin from mining at X mining cost vs Y market price to reduce "paper gains" even if the hidden swap is from coins you obtained years ago
c. having no mixer tags services watch out for

to emphasis (B)
imagine you got 0.5btc in 2016 for $250 ($500/btc)
and now worth $21k($42k/btc)
if you cashed out you would have to claim gains of $20,750

however swapping for 0.5btc of fresh mined coins this week
you can claim your electric is (US $0.12c/kwh) which at 500exahash network hashrate is 0.5btc for $14k electric +$7.5k hardware to be "break even"
thus no cap gains

plus the onchain transaction taint can prove coins origins are from this years reward and not some other website withdrawal you dont want the tax man to know about

Yeah, I converted to Monero using the method described in the first response, moved it between addresses, then converted back to a different crypto to send to the CEX. Worked great. Thanks everyone for the advice!

just be cautious
when using a promoted CEX but its not a regulated CEX, . regulated CEX/analysis services know of known unregulated crypto services reservehot/cold wallet addresses and would tag your withdrawal from their wallet as suspicious so you might be on a watchlist

though general users cant tie you to a particular earlier deposit. there are monitoring/analysis services that do rate utxo's/withdrawals based on where funds came from.
so you may have changed the taint from your previous use, you may now have a different taint suspicion rating for different reason

the very best way is to swap coins privately with a fresh mined coin

Monero is a best privacy coin and you can use Monero $XMR as a middle cryptocurrency to gain privacy with Bitcoin.

With Bitcoin public ledger, all transactions can be traced and you must use inputs, outputs very cleverly to reduce your on-chain traces. Monero can help you to increase your privacy.

Find exchanges (no KYC), to deposit your BTC to, swap it to XMR. Move your XMR around and sell it to Bitcoin. Withdraw it to your wallet.

You can use Coin Join transaction if want to increase privacy more but be aware that some centralized exchanges are against CoinJoin.

Most crypto gambling services implement KYC rules, there is no expectation of anonymity that way. On the other hand, they're centralizwd, there are more conditions and restrictions for withdrawing funds, you'll sometimes be violated by doing this by using the same account continuously.