There's always a risk using this kind of software, so I'll tell you my rules, to avoid being too obvious:
1. Always use the newest version of the bot, and only if it's updated for the latest version of Hearthstone and the latest expansion (I really don't recommend using Silverfish until an update, if there will be any).
2. If you see any misplays, report them.
3. Don't use the same decks all the time. Also switch between standard and wild, casual and ranked.
4. Don't use the bot in the same time intervals, with the same settings. For example, from 2:00 AM until it farms the 30 wins.
5. Use concede options. You won't be that obvious, and you'll save time.
6. Take a break sometimes. It's better to lose a few days gold, than the whole account.
7. Be silent. Don't accept friend requests, don't talk about this with anyone. This forum is the only place to talk about this.
8. Use different decks for the bot and yourself. If the bot has 40% winrate with a deck, and you have 60%, that's pretty obvious.
9. Squelch the opponents, and don't reply to emotes. Do the same when you play (and not the bot).
10. Don't rope. Use the optimal setting for your PC.

And if you have any questions, ask around on the forum.

Too bad that bot under the dome.
All reported bugs at forum are visible to real players so Bot needs improvement in all visible cases to prevent bot-reporting.

It is strange that people try to rope bots at night, it is so stupid to waste time for roping at night instead of sleeping, you understand that you play versus bot and anyway to lose your own time to rope, idiots ))))

Anyway the game will die soon , to be honest Ungoro did not do much, not interested, quest rogue, warrior, shaman and mage, or hunter - what is the difference between playing vs bot or vs quest rogue, not fun anyway. More over Blizzard bought Gwent, they try to reduce competition level instead of develop the game.

source for Blizzard bought Gwent? AFAIK Gwent is still owned by CD Projekt and they are not part of Activision/Blizzard

News about Gwent (in Russian)

PS
The date of news is April 1, may be it was a joke?!


And there are a lot of articles that Hearthstone is not so profitable now because of other cards game, more interested, so Blizzard try to be competitive by launching Ungoro, but not sure it will help... boring.

I bot only for 100 gold per day. I can play myself on ladder. Other way of doing this if you want golden heroes is to bot at rank 20, concede after each win and so on.