These Adkinsbet fools seem to be living in a world of their own where they feel that Adkinsbet is the best sportsbook and are obviously trying their hardest to tarnish the reputation of sportsbooks that they hate(Sportsbet.io etc) which is backfiring on them.
These idiots underestimated the collective power of the Bitcointalk community due to which they are riddled with negative trust ratings etc. Ignoring such fools and reporting their posts is the best option as you mentioned.
Let me correct you on this : you are referring to them as to a plurality of people but how can you easily verify all the accounts involved in this staging have changed owner in late 2020 and therefore it is very very likely that it is the same hand the one who writes the shill/shit posts.