I believe the OP can edit the thread title and possibly the first post.
Why not change it to "Is Namesilo Frontrunning?"
That asks a question and invites responses and lets people hear other people's experience and draw their own conclusions.
Some registrars, not Namesilo, have been suspected of selling whois searches on, and Network Solutions used to register any name you searched for and try to sell it for $39 for the next 5 days. So this question could come up sooner or later at any registrar.
If I understand right, OP found a name he wanted was rapidly taken. Has happened to most of us - you can have different intepretations of how that happens, and if you want to jump to making accusations without checking and considering the possibilities, there are still multiple parties you could accuse, not just the registrar.