-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Baudbonny's address: 1BaudD79CVCFFfy1sA6xa5qwHLRkNUNSFK
-----BEGIN BITCOIN SIGNATURE-----
Address: 1BaudD79CVCFFfy1sA6xa5qwHLRkNUNSFK

HK3erTrWcFsorJkPtqziLYgnPHe7pf3cFxC4tP5qo4JZMKJZsK4GVjKvzkfkD7yp3x1QS/mbuTpuSpzDRvuFaNQ=
-----END BITCOIN SIGNATURE-----

I earning about 0.2 bitcoin every week for living just with bitcoin. i do signature campaign, twitter campaign, do some service for bitcoins, and join poker freeroll to get free bitcoins.

Broadly speaking it is correct. But not so simply. We do all our best to give quality mixed coins to our clients. For example small volume users usually receive a part from a big source, high volume clients receive transfers from several small "quality" sources (was used several times before) etc. With a big reserve we can find suitable sources almost for all transactions.

There are no 100% guarantee. We just guarantee that you'll receive another not linked with you coins.
But if you use custom fee, time delay and several output addresses - there are many many chances to be untraceable. Usually attacker doesn't know that you use our service (unlike others).

Please don't forget to download and verify Letter of Guarantee BEFORE send us coins. Don't use TOR with our clearnet address.

This is called coin control and electrum has had this option for a long time now. On the addresses tab select the addresses you want to spend from. On PCs you can select multiple addresses by holding down the ctrl key when clicking on an address. Then right click and choose "Send from". There is no need to freeze addresses.

Very detailed information can be found here[1] and here[2], if you want to play around with TX created by hand I suggest bitcoin core. You dont have to fully sync it for this. Just use regtest or testnet (significantly small than mainnet). That is recommended anyway, because you dont have to risk any actual bitcoin. If you need testnet coins, just send me a PM with a testnet address and I will send you a few to play with. A QR code would be even better so I dont have to type the address

Electrum uses .txn files to import signed/unsigned transactions its mainly a wrapper around a raw TX though. You probably know the small window electrum open for transactions where you click "sign" and "broadcast" to actually send it. You can also click on "save" to create these .txn and get familiar with the format. Once you know how you create a raw TX with core and how electrum handles .txn file you should be able to do select individual inputs and not just addresses, but as I said above its overly complicated for the little amount of control you gain over the method Abdussamad mentioned.

[1] https://bitcoin.org/en/developer-reference#createrawtransaction
[2] https://bitcoin.org/en/developer-examples#transaction-tutorial

We don't "hide" transactions. We pay you from our reserve (to several different addresses with a time delay if you set), so there are no relations with your old and new coins. When attacker tracks your coins, he just see that you transferred coins to address, which then works like a webwallet. But he can't imagine that you have already received another not linked with you coins.

There is a way but its a bit drawn out.. You need to go to the address' tab and right click "freeze" the address' you dont want to spend. When you then send a tx it will send it from the amount that isnt frozen.

Interesting I didnt think about that, I only though about creating a unsigned TX by hand and importing it like you would form an offline wallet, but that would be overly complicated.

We created the accounts using our private proxies.

Tried to verify through coinig but it didn't worked so i was able to verify through electrum.

This is not hacked accounts. We created this accounts during the time we do seo on our client websites.