I'm Plat 3 and have never used Telegram codes, but I keep seeing claims that $1 codes might be flagged as "toxic" and affect future bonuses. Has anyone had issues or heard anything?
I have never heard or read anything like that. Actually, I have never claimed any of those codes, but in my opinion, it would be reasonable for stake to recalculate future bonuses given to the gamblers based on the number of codes and other perks they have enjoyed through other mechanisms. In general, I think that is something which most of casinos do and keep in consideration, in order to keep the scale on their favor and can continue to be profitable in the long term.
If I were you, I would wait for some time before such rumors get some official clarification by stake or one of their representatives.