I made an investigation about @Gva0210 's activity here in the Wiki. I formed a hypothesis, which later became a theory, which is now confirmed. I'll list some things that will prove my "theory."
75% of their names, in terms of spelling, are the same. Also their profile pics are the same.
@Gva0210 inserted false info, plus tried to make a template to say that Super Hero Feud is deleted.
I noticed that @Gabe0210 was once blocked previously due to inserting false information. The most notable one is "DC Super Hero Girls: The Musical." He kept on recreating this page which resulted in his block. Afterward, @Gva0210 did the same thing.
He tried calling @Gabe0210 for an unusual reason despite him being inactive.
He was secretly editing on pages that were dubious, or probably spam. Normally, an average user would report this to any admin, but @Gva0210 instead continued on those edits.
I can't find other proofs, but this is what I got so far.
To the person, you can choose either of the two:
Simply admit that you are @Gabe0210 trying to vandalize the Wiki, and we admins will let you slide; or
Continue your recklessness, and we will block you.