Sergio T.
Sergio T. is the founder and lead analyst behind BonusCheckr. The site exists because he got tired of affiliate sites rating every casino 9/10 and decided to build one that would do the maths honestly — even when the maths said no.
His background is iGaming, not gambling. Years in senior product roles across affiliate software and operator-side platforms gave him a front-row seat to how bonuses actually work: how operators price them, what the real expected cost-per-acquisition looks like on the other side of the funnel, and why the terms are written the way they are. The things casinos do not explain on their landing pages — stake-weighted rollover, contribution shifts, discretionary voiding clauses, capped cashouts disguised as "max payout" rules — are things he has seen debated in operator meetings. That is the angle BonusCheckr brings that most affiliate sites cannot: the inside knowledge of how the product is built, turned into plain-English analysis for the player.
The other half of his frame comes from crypto trading. Sergio treats bonuses the same way he treats a trade: what is the expected value, what is the variance, what is the probability I walk away with money. A 100% welcome bonus with 40× wagering and a 10× deposit max cashout is not a gift — it is a trade with negative expected value, and his job is to say so clearly. BonusCheckr's scoring rubric (six variables, EV-adjusted, house-edge-corrected) is the same kind of framework a trader uses to evaluate whether a position is worth entering. Most casino bonuses, when run through it honestly, are not.
That is the whole product thesis: casino bonuses should be scored like trades, not like marketing offers. The sites that score them like marketing offers are either lazy or dishonest. BonusCheckr is neither.
Sergio plays almost entirely at crypto and no-KYC operators — Stake, BC.Game, Roobet, Shuffle, Cloudbet, the Curaçao-licensed and Anjouan-licensed segment. That is where BonusCheckr's audience plays, and it is not an accident that it is also where the bonus terms are most divergent from regulated markets and most worth analysing properly.
Methodology
Every bonus is scored against a six-variable rubric: wagering requirement, game contribution weighting, max bet during rollover, max cashout, time window, and bonus stickiness. Each variable is weighted by its impact on realistic expected value — assuming slots at 2.5-4% house edge and typical player volatility exposure. The final score is the EV-adjusted outcome, not the paper value of the headline offer. A bonus that looks generous but clears to negative EV gets rated as such. No exceptions for operator size, brand, or affiliate commercial terms.
Credentials & scope
- 15+ years in iGaming, senior product roles across affiliate software and operator-side platforms
- Plays and analyses exclusively at crypto and no-KYC operators — Stake-tier, Curaçao, Anjouan
- Applies a trading-style EV framework to every bonus scored on BonusCheckr
- Authored every published review and guide on the site
- Reviews refreshed against live operator T&Cs every 90 days
- Methodology-first scoring: every operator scored against the same rubric regardless of affiliate commercial terms
On transparency
Sergio T. is a pen name. The person behind it is a working iGaming product leader who prefers to keep BonusCheckr separate from their day job. The expertise, the methodology, and every editorial judgement on the site are theirs. AI is used as a drafting tool against their rubric — the same way most writers use AI in 2026 — but the rubric, the scoring, the calls on which operators to cover, and the calls on which ones to reject are human decisions.